A penis pump — also known as a vacuum pump, an erection pump or a vacuum erection device (VED) — consists of a plastic chamber into which the penis is inserted, and a pump that’s powered by hand or battery. The suction increases blood flow to the penis, giving you a stronger erection. Then, a constriction ring (or cock ring) can be worn around the penis to maintain the erection during sex.

Some people use penis pumps on a purely recreational basis, as sex toys during foreplay. Others are prescribed a penis pump as a treatment for ED (erectile dysfunction). And some people try out these BOOST PUMPS in an attempt to achieve permanent penis enlargement.