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Medi-Power Size magically helps growing your penis in 10 minutes. Medi-Power Size is a non-surgical penis enlargement exercise product that can make your penis grow rapidly without side effects with just 10 minutes of exercise a day, depending on your physical condition. 
When the penis receives sexual stimulation, blood flows into the corpus cavernosum and causes an erection, making it larger. The size of the corpus cavernosum determines the size of the penis, as a larger chamber can hold more blood and result in a larger erection. Using this principle, MediSize invented and created a product called Power-Size, which operates on a vacuum pressure pump and works on a similar principle like cupping treatment. 
The epithelium of the penis is
made up of a stretchy structure. 
If you pull the epithelium of the penis with your hands, you can see that it stretches out easily. Side effects occur between the epithelium and the body of the penis, which are separated. 
Without the safe silicone protective cap When a vacuum pressure is applied to the penis using an existing enlargement pump, the body and the epithelium of the penis are separated, and blood is only drawn to the epithelium, causing it to expand. This can lead to severe side effects. 



With the safe silicone protective cap
After the protective cap is attached, applying a vacuum pressure with the enlargement pump compresses and surrounds the entire penis, including the protective cap. So, the epithelium doesn’t stretch out, and blood flows into the corpus cavernosum, causing both the glans and corpus cavernosum to expand and increase in size. 
The safe silicone protective cap is the core of Power-Size technology.  The inside of the silicone safety protection cap is made of soft silicone to safely exercise the sensitive exercise of the penis, while the outside is designed with slightly firmer silicone in a dual-layered structure to provide maximum function and effects without any side effects. The dual-layered structure is handmade as it cannot be automated. 

 The reason for it is to protect the sensitive penis during exercise, as a harder silicone can cause injury or discomfort with strong vacuum pressure, and to protect the sensitive penis during exercise.  The inside of the protective cap is designed with a water droplet-shaped embossed pattern and circular protrusions to provide a sexual sensation similar to inserting it into a woman's vagina.  It is designed to maximize the effect of vacuum pump exercise by natural erection stimulated by sexual arousal, and to minimize side effects by ergonomic design for the human body. 

By controlling the strength and duration of vacuum pressure, you can experience pleasurable sensations that are not normally felt in natural states. 
The result of 15 years of The principle behind "the surface area of the object expands as much as the gap between the protective cap and the vacuum tube" When more vacuum pressure is applied, the silicone safety cap tightly fits the size of the plastic vacuum tube, and at this point, the surface area of the object expands as much as the gap between the protective cap and the vacuum tube. Since there is a limit to how much the surface area can expand, if the vacuum tube is small, the gap between the protective cap and the tube will be too narrow, resulting in a less effective outcome. On the other hand, if the vacuum tube is large, the object may be overloaded, causing side effects. 
The safe silicone protective cap is the core of the patent and the invention Power-Size has derived the optimal size of the plastic vacuum tube and protective cap based on data collected through over 15 years of personal use. By extensive research and development, I have successfully produced a safe and effective product without any side effects. 
Permanent penile enlargement method by Medi-Power Size. Power-Size works on the same principle like cupping treatment. After just 10 minutes of exercise, the surface area of the penis expands rapidly and the micro-blood vessels are evenly activated, causing the glans to swell significantly. However, this effect is only temporary and will return to normal within 1-2 days. Therefore, exercising with Power-Size once every 1-2 days will help maintain a consistently enlarged state. Even after a month or a year, when you exercise as needed, you can see the effect of it growing back to its previous largest size in an instant, so it seems to be permanently enlarged. If you understand this principle precisely and exercise for a long period of time, you can see the effect of the scrotum gradually enlarging and expanding tremendously, resulting in a significant increase in the size of the penis. 
Tip: How to have a happy and pleasure experience in the world. ‘Practical Exercise Devise.Medi-Power Size is ‘Practical Exercise Devise.’   Power-Size doesn't pursue simple functionality and effects, but also emphasizes safety and various methods based on proper usage. After exercise, the penis reaches its maximum size, and its erection and rigidity become as strong as a tree trunk. When the glans is fully expanded like a mushroom, having sexual intercourse with a partner (within 4 hours) will provide a pleasurable experience that cannot be felt in a natural state. 
Medi-Power Size is The principle of Power-Size and various effects & functions

1. Power-Size with the strongest erectile strength and rigidity.
If you exercise with Power-Size for just 10 minutes a day, it will widen and coolly expand narrowed blood vessels. It will activate micro blood vessels evenly, making your erectile strength and rigidity as energetic as when you were young.

2. The principle behind penis enlargement with Power Size
Using Power-Size gets a strong physical force that pulls on the roots of the penis with vacuum pressure, causing the hidden penis inside the body to be pulled forward and resulting in an elongation effect.

3. The principle behind an increase in thickness and glans size
Through this physical method, the tunica pouch is initially expanded, and then the silicone safety cap stimulates the penis to receive sexual arousal, which causes blood to be pushed toward the tunica area, leading to a spontaneous erection without any side effects. So, this is the principal.

4. Power-Size for Practical Use
Whether the penis is erect or not, or even if you haven't exercised for a long time, with just 10 minutes of exercise, you can experience the size, erectile strength, and rigidity of the largest penis you have ever had in your life. It is a practical exercise equipment that allows you to have a happy relationship with your partner with a larger penis, no matter when or where, even after a month or a year, whenever you need it, regardless of the duration.

5. The principles behind effective erectile dysfunction and boredom relief 
f you use Power-Size, the glans swells and becomes larger. At this time, blood is evenly supplied to the micro-blood vessels, making the sensation of the glans come alive. Erectile dysfunction becomes dull, and boredom becomes sensitive, adjusting to an appropriate level of sensation.

6. The effect to be a man who has a boost confidence 
For those who suffer from erectile dysfunction or have trouble getting and maintaining an erection due to aging, By Power-Size you can expand the microvascular blood vessels and improve blood flow with just 10 minutes of daily exercise using vacuum pressure. This physical stimulation can increase the amount of blood in the corpus cavernosum and enhance sexual performance without relying on medication. With the improved erectile function and increased confidence, men can feel more confident and self-assured in any environment, whether it's at the gym or in the pool. Power- Size can make you a more confident and self-assured man by keeping your penis erect at all times.

7. The principle of permanent penis enlargement. 
Power-Size works on the same principle like cupping treatment. After just 10 minutes of exercise, the surface area of the penis expands rapidly and the micro-blood vessels are evenly activated, causing the glans to swell significantly. However, this effect is only temporary and will return to normal within 1-2 days. Therefore, exercising with Power-Size once every 1-2 days will help maintain a consistently enlarged state.
 Even after a month or a year, when you exercise as needed, you can see the effect of it growing back to its previous largest size in an instant, so it seems to be permanently enlarged. If you understand this principle precisely and exercise for a long period of time, you can see the effect of the scrotum gradually enlarging and expanding tremendously, resulting in a significant increase in the size of the penis. 

8. The joyful exercise device that can’t be experienced in a natural state 
The safety protection cap made of silicone creates a strong compressive force with a droplet-shaped embossed pattern and a ring-shaped border, providing a soft and smooth sensation similar to the inside of a woman's vagina, and the protection cap is in a vacuum state, it provides a pleasurable sensation that cannot be experienced in a natural state. Thus, it makes the exercise enjoyable without any pain. This addictive exercise device can be used for a lifetime.

9. Exercise to naturally achieve a circumcision effect without surgery 
When the foreskin's epithelium covers the glans, passing the narrow opening of the silicone safety protection cap causes the glans' epithelium to become moistened and fully expanded under vacuum pressure, causing blood to flow into the glans and making it swell. Repeating this process will eventually lead to a natural circumcision effect without surgery.

10. My secret exercise for the penis 
Power-Size is great for exercising in short periods of time, making it ideal for private spaces (such as cars, libraries, and bathrooms) where you can keep your workouts secret. You can exercise in private for up to 4 hours before having relations without anyone knowing. Moreover, the secret steel case has a lock, making it easy to keep hidden from others. 

An Innovative product for non-surgical penis enlargement method It enlarges your penis significantly without any side effects. 




▲ The Patent for Cavernous Body Enlargement Device  
This product has obtained PCT (Patent Cooperation Treaty) both in Korea and in overseas, with patent applications filed in major countries such as the United States, Japan, and China. Even after obtaining the first patent as the "cavernous body enlargement device" on February 6, 2012, I have continued our research and development to produce more effective products. As a result, on May 30, 2022, I obtained a patent for an improved ▲ The Patent for Peripheral Vascular Expansion Device 
 Peripheral Vascular Expansion Device," and international patent  applications (PCT) have also been completed.  This product has been used for over 15 years with minimal side effects compared to existing penis enlargement pumps, and it maximizes functionality and effectiveness.
Tip: How to have a happy and pleasure experience in the world. ‘Practical Exercise Devise.Medi-Power Size is ‘Practical Exercise Devise.’   Power-Size doesn't pursue simple functionality and effects, but also emphasizes safety and various methods based on proper usage. After exercise, the penis reaches its maximum size, and its erection and rigidity become as strong as a tree trunk. When the glans is fully expanded like a mushroom, having sexual intercourse with a partner (within 4 hours) will provide a pleasurable experience that cannot be felt in a natural state. 
Causes of side effects of existing vacuum constriction devices. The penis has the characteristic of thin skin, no subcutaneous fat layer, and loose attachment of the subcutaneous layer, making it mobile and elastic. So, the skin easily stretches during erection. Pulling the skin of the penis with a finger shows that it stretches easier than other parts of the body. When vacuum pressure is applied to the penis, blood should flow into the cavernous bodies, but since the body and epidermis of the penis are separated, only the epidermis expands, causing the skin to become engorged without increasing the blood flow to the cavernous bodies. That is why severe side effects can occur with existing vacuum constriction devices. Due to side effects, products like Bath** were developed, which use water instead of air pressure. The product works by filling a vacuum tube with water and then sealing it with the penis inside. The water is then expelled to create a vacuum (by water pressure), making the inside of the tube a vacuum state. However, the basic operating principle is similar to vacuum pumps that use air, so similar side effects are inevitable. Even though knowing the structure and characteristics of the penis precisely is essential to eliminate side effects, since only the air was replaced with water and the principle is similar, the same side effects occur. 

Side effects occur when using existing enlargement pumps without a safety silicone cap. 

Severe side effects can occur when even with only 5-10 minutes of applying vacuum pressure to the penis with existing enlargement pumps. This phenomenon occurs because the penis is softer and more fragile than other skin tissues. The typical side effect is a red and swollen epidermis that turns dark red. In severe cases, blisters can form on the glans, and symptoms of erectile dysfunction can also occur. 
Innovative invention★ Patented product Medi-Power Size, which maximizes advantages and overcomes disadvantages! 
Why should we induce natural erection of the penis? Power-Size uses vacuum pressure to initially enlarge the penis as much as possible, and then stimulates the penis inside the protective cap to induce better blood circulation. This results in the expansion of the micro-blood vessels and the maximum increase in erectile power and rigidity. Even when not erect, the penis appears larger and is immediately stimulated by the slightest sexual arousal. If the vacuum pressure is applied forcefully without the protective cap, side effects can occur. However, Power-Size uses a structurally designed silicone safety cap to induce natural sexual stimulation and avoid side effects. 
1. How to use


① Connect the vacuum pump and plastic vacuum tube to the pump line.




② Attach the silicone safety protective cap to the plastic vacuum tube.




③ Pump 4-6 times of water-soluble gel into the entrance of the silicone safety protective cap and apply it evenly with your fingers.




④ Apply water-soluble gel evenly to the penis for easy insertion into the silicone safety protective cap.




⑤ Place the entrance of the silicone safety protective cap onto the glans and pump until no more air can be pumped into the cap. (The penis will be sucked into the cap regardless of whether the penis is erect or not.)




⑥ Exercise for 10-20 minutes in that state, and pump again to maintain the pressure until the end of the exercise after a certain period of time has passed, and the pressure has decreased. While exercising, if you slightly contract your pelvic floor muscles like Kegel exercises to the point where no air can enter, and stimulate yourself by looking at pictures or videos, it can be more exciting and lead to maximum blood vessel dilation.




⑦ After the exercise, you can release the pressure on the penis by pressing the metal button on the rubber pump to release the air pressure.

2.Exercise Time I recommend you use less
than 10 minutes per a day. 
 There is a correlation between exercise time and the strength of vacuum pressure, so one way to resolve errors and exercise safely is to vary the time. All individuals have different skin and physical conditions, so, excessive vacuum pressure can lead to side effects. Occasionally, some people may not feel the desired effects if the vacuum pressure is too weak. However, you may feel weak vacuum pressure because the silicone safety cap is effectively protecting the penis, but the vacuum pressure of Power-Size is never weak, and increasing the pressure can lead to side effects. Therefore, to exercise safely, I recommend you start with 10 minutes of exercise and gradually increase the time by 5 minutes as long as there are no side effects, up to a maximum of 30 minutes. This approach can achieve the same effect as increasing the strength of the vacuum pressure. As the time is increased, you can feel that the blood is pooling in the glans, making it even harder. By exercising according to your own optimal time using this method, the effect can be even better. 
3. How to safely clean
silicone safety cap

If you hold the protective cap hole under the tap for 1 minute and let water flow through, the gel will naturally be rinsed out. If you want to clean it more, you can use soap and a soft toothbrush. 

Sterilization: Soak it in boiling water for about a minute. 
Caution: Do not fold or invert the wings of the silicone safety cap while washing it. It must be washed and stored in its original state to be used semi-permanently. 
※ The silicone used in the protective cap is made of silicone material approved by the US FDA. According to the quality assurance of the raw material manufacturer, the product can be used for about 36 years without deformation or stickiness, unless intentionally damaged by sharp objects or similar means. It can be used semi-permanently. 
※ Silicone has been authorized skin-contact safety certification [SKIN-SAFE (OECE-TG439)], making it safe for direct use on the skin. 
4. Cautions First  Medi-Power Size is an addictive exercise equipment that enhances vitality. Please, do not use it more than once a day.  Second  During exercise, I recommended you minimize movement of the penis to achieve maximum swelling and effectiveness. I advise only receiving sexual stimulation and minimizing movement. Second  If the vacuum pressure is too high or if you exercise for an extended period of time, those with weaker skin conditions may experience a stinging sensation, red spots, or blisters on the penis. When in pain, there may be tiny invisible wounds. If you experience any of these symptoms, I recommend you apply ointment such as Hushitin or Madecassol and use the product only after full recovery. If symptoms are severe, please seek medical advice and follow the prescription of a pharmacist or doctor before use. * For more cautions, please read an user manual.  
Selected for the Small and Medium Business Administration's Innovative Growth Type R&D Support Program! In Korea, there is a stereotype that sex is negative and unspoken, so it is not easily recognized. 
However, technology and effectiveness of MediSize have been evaluated as innovative in solving men's complexes and shaping Korea's sexual culture. I have been selected as an innovative growth type venture company. I will continue to develop and create innovative inventions to solve concerns of all men in the world by steady research and development activities. Thank you! MediSize. What is innovative growth type venture company? "A new evaluation process has been established that assesses not only a company's technological innovation and business growth, but also their efforts and sincerity in laying the foundation for these achievements. This evaluation process verifies the company's potential, which differs from traditional guarantee/loan types." 
MediSize use 100% medical-grade silicone (certified by the US. FDA and skin contact safety). Q.What is the difference between MediSize and other low-cost products? A.The difference is the silicone grade. Silicone grade, quality, and cost can vary greatly. All of MediSize use 100% medical-grade silicone registered with the FDA. Silicone used in adult products and household tools are generally low-cost and soft, and to make shaping easier, a lot of cheap silicone with stiffeners is used. However, over time, the stiffeners seep out, causing stickiness and reducing durability, making long-term use difficult. 

Q.What about the durability of the silicone used in MediSize? A. The durability is about 36 years semi-permanently, and unless sharp objects are used or intentionally damaged, the product won’t deform or be sticky. It can be used semi-permanently and is easy to clean and store as it does not deform even when soaked in boiling water or used with soap or detergent. 

Q. How to clean Medi-Size? A: You can sterilize them with soap, detergent, or boiling water. It can be used semi-permanently without becoming sticky or deformed even when soaked in detergent or boiled water for a long time. 
Medi-Power Size magically helps growing your penis in 10 minutes. Medi-Power Size is a non-surgical penis enlargement exercise product that can make your penis grow rapidly without side effects with just 10 minutes of exercise a day, depending on your physical condition. 
The principle how to grow the penis rapidly like a magic.
When the penis receives sexual stimulation, blood flows into the corpus cavernosum and causes an erection, making it larger. The size of the corpus cavernosum determines the size of the penis, as a larger chamber can hold more blood and result in a larger erection. Using this principle, MediSize invented and created a product called Power-Size, which operates on a vacuum pressure pump and works on a similar principle like cupping treatment. 
When exercising the penis with Medi-Power Size by applying vacuum pressure for 10 minutes, blood flows into the penis. At this time, the silicone safety cap surrounds and presses the entire penis, so that only the corpus cavernosum is filled with blood and the scrotum is fully expanded. Through this physical method, the tunica pouch is initially expanded, and then the silicone safety cap stimulates the penis to receive sexual arousal, which causes blood to be pushed toward the tunica area, leading to a spontaneous erection without any side effects. So, this principle results in the tunica pouch being maximally expanded, causing the penis to magically grow in an instant without any negative effects. 
The epithelium of the penis is made up of a stretchy structure. 
If you pull the epithelium of the penis with your hands, you can see that it stretches out easily. Side effects occur between the epithelium and the body of the penis, which are separated. 
Without the safe silicone protective cap When a vacuum pressure is applied to the penis using an existing enlargement pump, the body and the epithelium of the penis are separated, and blood is only drawn to the epithelium, causing it to expand. This can lead to severe side effects. 
With the safe silicone protective cap
After the protective cap is attached, applying a vacuum pressure with the enlargement pump compresses and surrounds the entire penis, including the protective cap. So, the epithelium doesn’t stretch out, and blood flows into the corpus cavernosum, causing both the glans and corpus cavernosum to expand and increase in size. 
The safe silicone protective cap is the core of Power-Size technology.  The inside of the silicone safety protection cap is made of soft silicone to safely exercise the sensitive exercise of the penis, while the outside is designed with slightly firmer silicone in a dual-layered structure to provide maximum function and effects without any side effects. The dual-layered structure is handmade as it cannot be automated. The reason for it is to protect the sensitive penis during exercise, as a harder silicone can cause injury or discomfort with strong vacuum pressure, and to protect the sensitive penis during exercise. The inside of the protective cap is designed with a water droplet-shaped embossed pattern and circular protrusions to provide a sexual sensation similar to inserting it into a woman's vagina. It is designed to maximize the effect of vacuum pump exercise by natural erection stimulated by sexual arousal, and to minimize side effects by ergonomic design for the human body.

By controlling the strength and duration of vacuum pressure, you can experience pleasurable sensations that are not normally felt in natural states. 
The result of 15 years of The principle behind "the surface area of the object expands as much as the gap between the protective cap and the vacuum tube" When more vacuum pressure is applied, the silicone safety cap tightly fits the size of the plastic vacuum tube, and at this point, the surface area of the object expands as much as the gap between the protective cap and the vacuum tube. Since there is a limit to how much the surface area can expand, if the vacuum tube is small, the gap between the protective cap and the tube will be too narrow, resulting in a less effective outcome. On the other hand, if the vacuum tube is large, the object may be overloaded, causing side effects. 
The safe silicone protective cap is the core of the patent and the invention Power-Size has derived the optimal size of the plastic vacuum tube and protective cap based on data collected through over 15 years of personal use. By extensive research and development, I have successfully produced a safe and effective product without any side effects. 
Permanent penile enlargement method by Medi-Power Size. Power-Size works on the same principle like cupping treatment. After just 10 minutes of exercise, the surface area of the penis expands rapidly and the micro-blood vessels are evenly activated, causing the glans to swell significantly. However, this effect is only temporary and will return to normal within 1-2 days. Therefore, exercising with Power-Size once every 1-2 days will help maintain a consistently enlarged state. Even after a month or a year, when you exercise as needed, you can see the effect of it growing back to its previous largest size in an instant, so it seems to be permanently enlarged. If you understand this principle precisely and exercise for a long period of time, you can see the effect of the scrotum gradually enlarging and expanding tremendously, resulting in a significant increase in the size of the penis. 
Tip: How to have a happy and pleasure experience in the world. ‘Practical Exercise Devise.Medi-Power Size is ‘Practical Exercise Devise.’   Power-Size doesn't pursue simple functionality and effects, but also emphasizes safety and various methods based on proper usage. After exercise, the penis reaches its maximum size, and its erection and rigidity become as strong as a tree trunk. When the glans is fully expanded like a mushroom, having sexual intercourse with a partner (within 4 hours) will provide a pleasurable experience that cannot be felt in a natural state. 
Medi-Power Size is The principle of Power-Size and various effects & functions

1. Power-Size with the strongest erectile strength and rigidity.
If you exercise with Power-Size for just 10 minutes a day, it will widen and coolly expand narrowed blood vessels. It will activate micro blood vessels evenly, making your erectile strength and rigidity as energetic as when you were young.

2. The principle behind penis enlargement with Power Size
Using Power-Size gets a strong physical force that pulls on the roots of the penis with vacuum pressure, causing the hidden penis inside the body to be pulled forward and resulting in an elongation effect.

3. The principle behind an increase in thickness and glans size
Through this physical method, the tunica pouch is initially expanded, and then the silicone safety cap stimulates the penis to receive sexual arousal, which causes blood to be pushed toward the tunica area, leading to a spontaneous erection without any side effects. So, this is the principal.

4. Power-Size for Practical Use
Whether the penis is erect or not, or even if you haven't exercised for a long time, with just 10 minutes of exercise, you can experience the size, erectile strength, and rigidity of the largest penis you have ever had in your life. It is a practical exercise equipment that allows you to have a happy relationship with your partner with a larger penis, no matter when or where, even after a month or a year, whenever you need it, regardless of the duration.

5. The principles behind effective erectile dysfunction and boredom relief 
f you use Power-Size, the glans swells and becomes larger. At this time, blood is evenly supplied to the micro-blood vessels, making the sensation of the glans come alive. Erectile dysfunction becomes dull, and boredom becomes sensitive, adjusting to an appropriate level of sensation.

6. The effect to be a man who has a boost confidence 
For those who suffer from erectile dysfunction or have trouble getting and maintaining an erection due to aging, By Power-Size you can expand the microvascular blood vessels and improve blood flow with just 10 minutes of daily exercise using vacuum pressure. This physical stimulation can increase the amount of blood in the corpus cavernosum and enhance sexual performance without relying on medication. With the improved erectile function and increased confidence, men can feel more confident and self-assured in any environment, whether it's at the gym or in the pool. Power- Size can make you a more confident and self-assured man by keeping your penis erect at all times.

7. The principle of permanent penis enlargement. 
Power-Size works on the same principle like cupping treatment. After just 10 minutes of exercise, the surface area of the penis expands rapidly and the micro-blood vessels are evenly activated, causing the glans to swell significantly. However, this effect is only temporary and will return to normal within 1-2 days. Therefore, exercising with Power-Size once every 1-2 days will help maintain a consistently enlarged state.
 Even after a month or a year, when you exercise as needed, you can see the effect of it growing back to its previous largest size in an instant, so it seems to be permanently enlarged. If you understand this principle precisely and exercise for a long period of time, you can see the effect of the scrotum gradually enlarging and expanding tremendously, resulting in a significant increase in the size of the penis. 

8. The joyful exercise device that can’t be experienced in a natural state 
The safety protection cap made of silicone creates a strong compressive force with a droplet-shaped embossed pattern and a ring-shaped border, providing a soft and smooth sensation similar to the inside of a woman's vagina, and the protection cap is in a vacuum state, it provides a pleasurable sensation that cannot be experienced in a natural state. Thus, it makes the exercise enjoyable without any pain. This addictive exercise device can be used for a lifetime.

9. Exercise to naturally achieve a circumcision effect without surgery 
When the foreskin's epithelium covers the glans, passing the narrow opening of the silicone safety protection cap causes the glans' epithelium to become moistened and fully expanded under vacuum pressure, causing blood to flow into the glans and making it swell. Repeating this process will eventually lead to a natural circumcision effect without surgery.

10. My secret exercise for the penis 
Power-Size is great for exercising in short periods of time, making it ideal for private spaces (such as cars, libraries, and bathrooms) where you can keep your workouts secret. You can exercise in private for up to 4 hours before having relations without anyone knowing. Moreover, the secret steel case has a lock, making it easy to keep hidden from others. 

An Innovative product for non-surgical penis enlargement method It enlarges your penis significantly without any side effects. This product has obtained PCT (Patent Cooperation Treaty) both in Korea and in overseas, with patent applications filed in major countries such as the United States, Japan, and China. Even after obtaining the first patent as the "cavernous body enlargement device" on February 6, 2012, I have continued our research and development to produce more effective products. 

▲ The Patent for Cavernous Body Enlargement Device 


As a result, on May 30, 2022, I obtained a patent for an improved "Peripheral Vascular Expansion Device," and international patent applications (PCT) have also been completed. This product has been used for over 15 years with minimal side effects compared to existing penis enlargement pumps, and it maximizes functionality and effectiveness.


▲ The Patent for Peripheral Vascular Expansion Device


As humans age, blood vessels contract and shrink, causing a decrease in strength and size of the penis. "Cavernous Body Enlargement Device" and "Peripheral Vascular Expansion Device" help address this issue. MediSize is an exercise device that expands the blood vessels in the penis, just as its name suggests. By expanding narrow blood vessels, it quickly makes the penis larger. As a result, a large amount of blood flows in, activating even the micro-blood vessels, which enhances erectile function and rigidity, making it as vigorous and strong as it was when young. As it’s a patented product, unauthorized reproduction may result in civil and criminal liability. Vacuum Constriction Device
Vacuum Constriction DeviceThe official name registered with the Ministry of Food and Drug Safety (MFDS) is "Penile Arterial Replenishment Device," which uses negative pressure to repeatedly contract and expand the cavernous tissue to improve blood flow to the penis. In the US FDA (2004) and the Korean MFDS, it is registered with Vacuum Constriction Device, one of the treatments for erectile dysfunction. Currently available vacuum pumps can rapidly increase the volume and weight of the penis, but they were created without a thorough understanding of the structure of the penis. Therefore, while they have enlargement effects, applying high vacuum pressure to the penis can lead to serious side effects. 
Causes of side effects of existing vacuum constriction devices. The penis has the characteristic of thin skin, no subcutaneous fat layer, and loose attachment of the subcutaneous layer, making it mobile and elastic. So, the skin easily stretches during erection. Pulling the skin of the penis with a finger shows that it stretches easier than other parts of the body. When vacuum pressure is applied to the penis, blood should flow into the cavernous bodies, but since the body and epidermis of the penis are separated, only the epidermis expands, causing the skin to become engorged without increasing the blood flow to the cavernous bodies. That is why severe side effects can occur with existing vacuum constriction devices. Due to side effects, products like Bath** were developed, which use water instead of air pressure. The product works by filling a vacuum tube with water and then sealing it with the penis inside. The water is then expelled to create a vacuum (by water pressure), making the inside of the tube a vacuum state. However, the basic operating principle is similar to vacuum pumps that use air, so similar side effects are inevitable. Even though knowing the structure and characteristics of the penis precisely is essential to eliminate side effects, since only the air was replaced with water and the principle is similar, the same side effects occur. Side effects occur when using existing enlargement pumps without a safety silicone cap. Severe side effects can occur when even with only 5-10 minutes of applying vacuum pressure to the penis with existing enlargement pumps. This phenomenon occurs because the penis is softer and more fragile than other skin tissues. The typical side effect is a red and swollen epidermis that turns dark red. In severe cases, blisters can form on the glans, and symptoms of erectile dysfunction can also occur. 
Innovative invention★ Patented product Medi-Power Size, which maximizes advantages and overcomes disadvantages! 
Why should we induce natural erection of the penis? Power-Size uses vacuum pressure to initially enlarge the penis as much as possible, and then stimulates the penis inside the protective cap to induce better blood circulation. This results in the expansion of the micro-blood vessels and the maximum increase in erectile power and rigidity. Even when not erect, the penis appears larger and is immediately stimulated by the slightest sexual arousal. If the vacuum pressure is applied forcefully without the protective cap, side effects can occur. However, Power-Size uses a structurally designed silicone safety cap to induce natural sexual stimulation and avoid side effects. 
1. How to use

① Connect the vacuum pump and plastic vacuum tube to the pump line.

② Attach the silicone safety protective cap to the plastic vacuum tube.

③ Pump 4-6 times of water-soluble gel into the entrance of the silicone safety protective cap and apply it evenly with your fingers.

④ Apply water-soluble gel evenly to the penis for easy insertion into the silicone safety protective cap.

⑤ Place the entrance of the silicone safety protective cap onto the glans and pump until no more air can be pumped into the cap. (The penis will be sucked into the cap regardless of whether the penis is erect or not.)

⑥ Exercise for 10-20 minutes in that state, and pump again to maintain the pressure until the end of the exercise after a certain period of time has passed, and the pressure has decreased. While exercising, if you slightly contract your pelvic floor muscles like Kegel exercises to the point where no air can enter, and stimulate yourself by looking at pictures or videos, it can be more exciting and lead to maximum blood vessel dilation.

7. After the exercise, you can release the pressure on the penis by pressing the metal button on the rubber pump to release the air pressure.
2.Exercise Time I recommend you use less than 10 minutes per a day.  There is a correlation between exercise time and the strength of vacuum pressure, so one way to resolve errors and exercise safely is to vary the time. All individuals have different skin and physical conditions, so, excessive vacuum pressure can lead to side effects. Occasionally, some people may not feel the desired effects if the vacuum pressure is too weak. However, you may feel weak vacuum pressure because the silicone safety cap is effectively protecting the penis, but the vacuum pressure of Power-Size is never weak, and increasing the pressure can lead to side effects. Therefore, to exercise safely, I recommend you start with 10 minutes of exercise and gradually increase the time by 5 minutes as long as there are no side effects, up to a maximum of 30 minutes. This approach can achieve the same effect as increasing the strength of the vacuum pressure. As the time is increased, you can feel that the blood is pooling in the glans, making it even harder. By exercising according to your own optimal time using this method, the effect can be even better. 
3. How to safely clean
silicone safety cap
f you hold the protective cap hole under the tap for 1 minute and let water flow through, the gel will naturally be rinsed out. If you want to clean it more, you can use soap and a soft toothbrush. Sterilization: Soak it in boiling water for about a minute. Caution: Do not fold or invert the wings of the silicone safety cap while washing it. It must be washed and stored in its original state to be used semi-permanently. ※ The silicone used in the protective cap is made of silicone material approved by the US FDA. According to the quality assurance of the raw material manufacturer, the product can be used for about 36 years without deformation or stickiness, unless intentionally damaged by sharp objects or similar means. It can be used semi-permanently. ※ Silicone has been authorized skin-contact safety certification [SKIN-SAFE (OECE-TG439)], making it safe for direct use on the skin. 
4. Cautions First  Medi-Power Size is an addictive exercise equipment that enhances vitality. Please, do not use it more than once a day.  Second  During exercise, I recommended you minimize movement of the penis to achieve maximum swelling and effectiveness. I advise only receiving sexual stimulation and minimizing movement. Second  If the vacuum pressure is too high or if you exercise for an extended period of time, those with weaker skin conditions may experience a stinging sensation, red spots, or blisters on the penis. When in pain, there may be tiny invisible wounds. If you experience any of these symptoms, I recommend you apply ointment such as Hushitin or Madecassol and use the product only after full recovery. If symptoms are severe, please seek medical advice and follow the prescription of a pharmacist or doctor before use. * For more cautions, please read an user manual.  
Selected for the Small and Medium Business Administration's Innovative Growth Type R&D Support Program! In Korea, there is a stereotype that sex is negative and unspoken, so it is not easily recognized. However, technology and effectiveness of MediSize have been evaluated as innovative in solving men's complexes and shaping Korea's sexual culture. I have been selected as an innovative growth type venture company. I will continue to develop and create innovative inventions to solve concerns of all men in the world by steady research and development activities. Thank you! MediSize. What is innovative growth type venture company? "A new evaluation process has been established that assesses not only a company's technological innovation and business growth, but also their efforts and sincerity in laying the foundation for these achievements. This evaluation process verifies the company's potential, which differs from traditional guarantee/loan types." 
MediSize use 100% medical-grade silicone (certified by the US. FDA and skin contact safety). Q.What is the difference between MediSize and other low-cost products? A.The difference is the silicone grade. Silicone grade, quality, and cost can vary greatly. All of MediSize use 100% medical-grade silicone registered with the FDA. Silicone used in adult products and household tools are generally low-cost and soft, and to make shaping easier, a lot of cheap silicone with stiffeners is used. However, over time, the stiffeners seep out, causing stickiness and reducing durability, making long-term use difficult. Q.What about the durability of the silicone used in MediSize? A. The durability is about 36 years semi-permanently, and unless sharp objects are used or intentionally damaged, the product won’t deform or be sticky. It can be used semi-permanently and is easy to clean and store as it does not deform even when soaked in boiling water or used with soap or detergent. Q. How to clean Medi-Size? A: You can sterilize them with soap, detergent, or boiling water. It can be used semi-permanently without becoming sticky or deformed even when soaked in detergent or boiled water for a long time.