1corpus cavernosa
2urethra
3corpus spongiosum
When you have an erection, the corpora cavernosa of your penis which is made of many cells will swell with blood. Like a sponge that soaks water, your penis gains volume and can reach up to 4 times its original size.
To protect the urethra (the tube that allows you to urinate or ejaculate), the corpus spongiosum surrounding it will also grow and vascularize to create a protective layer.
Now, what do you think would happen if the blood pressure in the corpora cavernosa of the penis increased?
The cells that compose it would be forced to expand. It can be compared to your stomach when you eat too much or drink too much beer!
Our exercises are made just for that: to train the corpora cavernosa to contain a bigger amount of blood. In time, the expansion becomes permanent and your penis will get bigger in length and girth, during erection or rest.
Even if everybody says on forums and etc that all that matters is what you do with it and not the size, the truth is that a smaller penis is never as « fulfilling ». We have less feeling and it makes an orgasm even harder to achieve. It was me who pushed my husband to follow this method and I don't regret it at all mmmh!