Take your penis pumping to the next level with the Pump Worx Digital Power Penis Pump. This penis pump is different than others because it includes a digital pressure gauge, which gives you a reading of how much pressure is being applied to your penis. This penis pump pumps manually, meaning you pull the attached pump over and over to enlarge your penis. Do penis pumps really work? They seem to have a temporary engorging effect. Your penis might look firmer and bigger if you use one, and you might find the suction stimulating. To use, insert your penis into the vacuum chamber, squeeze the EZ-grip handle, and watch your dick get bigger. The stretchy sleeve forms a seal against your skin and creates a vacuum inside the chamber, which is supposed to force your erection to get bigger. The clear cylinder allows you to see yourself getting bigger with each pump. Also included is a free cock ring, which you slip on once you remove your penis from the pump. Use the enhancement ring to maintain your erection and prolong orgasm. Tube length: 8 inches. Tube Width: 3 inches.