Screaming O Plus is fun and easy to try as a first time vibrating ring! Made with a thicker ring than the original Screaming O, this ring fits snugly to help enhance erection. Made of super-stretchy elastomer, the ring has a small but powerful vibe on the top, controlled by an on/off switch on the side. Battery life will last for about 30 - 45 minutes; ring is disposable. The stretchy ring is made of phthalate-free SEBS elastomer, and the internal bullet is made of hard plastic.