RingO Ranglers: Cannonball is a super stretchy erection ring that keeps him harder longer with a fuller erection, mind-blowing orgasms and premature ejaculation prevention. It is also great for keeping condoms in place and an excellent addition to any penis pump. Firmer and harder erections with more intense orgasms. Helps control premature ejaculation. Stretchy, comfortable erection ring. Reusable fun. SEBS silicone. Latex and phthalate free. Waterproof, non-vibrating cock ring. Clean with soap and hot water.