Function: Vibration Penis SleeveColor: Black/ClearSize: 18.6 * 3.4 cm/7.3  * 1.3 inchInsert Length: 9.5 cm/3.7 inchNet Weight: 98 g/0.21 lb/3.4 ozPower: 2 LR41 Cell BatteryMaterial: TPEPackage: Color BoxFurther: WaterproofPackage: 19*6*4 CM