The Sizegenetics is the only clinically proven penis enlargement device available in the market that offers 2800 grams of tension which is 50% more than other devices to increase the size of your penis by a few inches. This extender also offers a money-back guarantee and has been devised with the best medical-grade material in order to ensure maximum comfort. It has also recommended by doctors and it provides great results in a short period of time with zero damage.