Posh Silicone Vibro Rings from Cal Exotics. Luxurious Silicone enhancer provides support for him, powerful stimulation for a partner. Plushy soft, comfortable, stretchy, and durable. Removable and reusable vibrating stimulator. New micro stimulator clicks left or right for instant activation. Silicone (enhancer) ABS (stimulator). Batteries included (2 watch, 4 included). 1.25"/3.25 cm (diameter). 1.5" x .5"/3.75 cm x 1.25 cm (stimulator).