Back Door Entry with this whisper-quiet motor delivers mind blowing vibrations directly to your most sensitive spot. With one solid click of the button, you will go from flutter to a throb in seconds. Relax and enjoy the Anal Adventure. Ultra-hygienic silicone, hypoallergenic, firm yet super flexible and an easy grip. Easy cleanup, waterproof, Unisex. Dimensions: Length 5.75'' Insertable 4'' Diameter: 1.375'' (max.) 0.875'' (min.). Batteries: 1x AA (not included)