Penis Rings are more popularly called Cock Rings. It is mainly used by people who have erectile dysfunction or weak erection. Basically cock rings are used to restrict the reversal of blood from the penis once it is in its erect state. Cock Rings are worn around the base of the penis or around the penis and behind the testicles. The cock ring traps blood in the penis, which may make it look and feel a bit larger while it is erect. Visit: https://www.mynoveltyshop.com/....product/penis-cock-r