Wraps snug around your penis head and delivers powerful pulsations. The soft, silicone fins on the inside of the cup tease and please, while 10 tingly massage patterns add to the pleasure. Waterproof. Measures 5 in. long by 2 in. wide, with an inner diameter of 1.8 in. and inner length of 1.4 in. Requires 1 AAA battery, not included. Includes love mask, lotion and toy cleaner.