California Exotic Novelties Embrace Couple's Ring 7 functions of intense vibration, pulsation and escalation. Luxurious body safe Silicone. Removable vibrating massager. Stretchy and comfortable enhancer. Batteries included. Silicone (ring) ABS with Silver Plating (stimulator). Requires 3 Watch Batteries, Included. 3.25 inches by 1.75 inches. 2.5 inches by  .75 inch stimulator. 1 inch ring diameter.