Silicone Ring with Vibrating Plug - Combination two in one - 100% Silicone Penis ring and vibrating butt plug by Black Velvet Germany Black silicone cock ring with attached vibrating butt plug from Black Velvet Germany. Product features & characteristics: • Dildo: approx. 13 cm long • Diameter: 03.9-4.2 cm • Connection strap approx. 14 cm long • Ring 04.5 cm • Battery type: 1 AAA • Material: silicone. bullet: ABS with a PU coating. phthalate-free according to EU Regulation REACH