7 functions of intense vibration, pulsation and escalation. Luxurious body safe Silicone Removable vibrating massager. Stretchy and comfortable enhancer. Batteries included Safe and pure for body and pleasure made using phthalate free Silicone ring, ABS plastic with silver plating stimulator. Bulk weight 1.6 ounces. Requires 3 watch batteries, included. 3.25 inches by 1.75 inches, 2.5 inches by .75 inch stimulator. 1 inch ring. diameter