A cock ring, also known as a penis ring or a tension ring, is a small ring that is worn around the base of the penis. The ring is typically made of rubber, silicone, or metal, and its purpose is to constrict the blood flow out of the penis, which can help maintain an erection. Some people also wear cock rings for decorative purposes or as a form of sexual play. Here you will find only non-vibrating cock-rings.