Vedo Silicone Toy Collection keeps things fresh in and out of the bedroom. Vedo packs a powerful punch with four vibrating motors. Click on all four simultaneously or one at a time you decide how much power you or your partner needs. The smooth silicone gives this reusable ring enough elasticity to fit any length or girth. Vibrating ring features: four powerful motor. One button easy control. Extremely quiet. Velvety smooth silicone. Waterproof vibrations. Vibrating ring requires 2 button cell batteries in each motor, included. Running time 4 40 minutes. Measurements: height 7.5cm inner diameter 3.2cm e or approximately 2.95 inches by 1.25 inches. Color Just Black.