Adds 3 inches to length30% Xtra girthVibratingBetter than Real REALSKINWaterproofPhthalates freeRoHS compliantMaterials_ Sleeve - TPE, Bullet Vibe - ABSSize_ Sleeve Size_ Length - 6.375, Diameter - 1.5325, Bullet Vibe_ Diameter - 0.6825 X 2.25Uses 1 LR 44 (AG13)Batteries included