Clinical studies have proven that with vacuum erection aids you can immediately achieve harder erections, cause temporary enlargement and increase the possibility of permanent penis enlargement. According to the American Urological Association, these aids can also be useful in cases when any pde5 drugs such as Viagra have not worked Doctors see the penis pump as a safe, effective and cost-effective treatment for erectile dysfunction and status that the prolonged use of these devices will permanently improve the size of the penis. Other advantages of pump selection include delayed ejaculation, improving sexual appetite, promoting testosterone, maintaining longer and harder erections and supporting penis tissue after prostate surgery. Pumped for immediate results! With a total cylinder length of 23 cm (9 inches) and a diameter of 6 cm (2.35 inches), this high-quality pump offers you plenty of possibilities to grow in two directions. The total length of the hose is 25 cm (10 inches) and the insert case is made of smooth silicone. You will be surprised every time how big you can get! There is a transparent version and three other colours to choose from: blue, red or black. This version comes with a robust pump handle in finger width and a quick release valve for comfortable handling.