Adds 3 inches to length 30% Xtra girth Vibrating Better-than-real “REALSKIN” Waterproof Phthalate-free RoHS compliant Materials: Sleeve – TPE, Bullet Vibe – ABS Size: Sleeve Size: Length – 6.375", Diameter – 1.5325", Bullet Vibe: Diameter – 0.6825" X 2.25" Uses 1 LR 44 (AG13) Batteries included