Discover thick, throbbing erections that last with this professional-grade Deluxe Auto-VAC Power Pump. Developed as a safe, affordable, non-surgical alternative to expensive medical procedures and pills, this hands-free, auto-powered penis pump is the easy way to instantly enlarge your penis without any negative side-effects.With the push of a button, the powerful motor creates a super-strong vacuum inside the chamber, forcing your erection to quickly expand its length and girth. The soft TPR sleeve forms an air-tight seal against the skin, creating incredible suction and amazing results, while the clear vacuum cylinder allows you to see your cock get bigger and fatter by the second! The tube is made from thick, heavy grade acrylic and marked with metric graduations to measure your growth. Tube length is 6.75 in., width is 2.5 in.