The Screaming O RingO 3 Pack Cock Rings. Choose from 3 super stretchy erection rings for the perfect fit. Stay harder longer with a fuller erection. mind blowing orgasms and premature ejaculation prevention. Features: 3 sizes for 3 sensations. Firmer and harder erections with more intense orgasms. Helps control premature ejaculation. Stretchy. comfortable erection rings. Additional Information: reusable fun. No batteries required. SEBS silicone. Latex and phthalate free. Waterproof non-vibrating cock rings.