Eco-friendly C style silicone vibrating prostate massager Specifications Length - 4 1/2" Insertable Length - 4" Girth - 3.6" around at largest (insertable) Width - 1 1/2" (external) Material - Silicone, ABS plastic (bullet) Powered by - 1 x N battery Special Features - Waterproof, hypoallergenic, quiet