TLC Caliber Vibrating Silicone Cockring is made from soft stretchable silicone. Removable vibrating mini bullet has 6 functions of pulsation and 3 vibration speeds. Unique paddle shape provides distinctive new pleasure experiences. Waterproof for fun in and out of the water. Uses 3 AG3 batteries (included). Width 1.2" (3cm), inner circumference 3.7" (9.3cm).