The Super Enjoyable Vibrating Ring is a cock ring that also features a small bullet vibrator for additional stimulation for the wearer and receiver. It is made of a stretchy material so it can fit users (and dildos) of different sizes. Material: TPR Silicone. Texture: Nubbed. Safety features: Latex free / Non-porous / Phthalates free / Hypo-allergenic. Maxstretched diam.: 2 1/2". Unstretched diameter: 1 5/8".