Hero Power Glow In The Dark Cock Ring 7 different vibrations. Orange light flashes. Easy to operate. Push button control. Waterproof vibrations for play outside the bedroom. Cock ring measures 2.25 inches long by 1.625 inches wide. Made using phthalate free, non-toxic materials Silicone. Vibrating cock ring requires 2 AG10 batteries, included. A water based lubricant is recommended. Cock rings when worn around the base of the penis and testicles, many users find that cock rings increase sexual pleasure. Prolong rings, erection enhancement, climax control rings, cock rings. Always clean before and after use. Hero Power Glow In The Dark Cock Ring from Nasstoys of New York.