Mack Tuff Vibrating Power Pump features variable speeds. Easy squeeze hand pump. Interchangeable tips. Waterproof vibrations. RoHS compliant phthalate free. Materials: Vibrating Cup, Hose PVC, Flesh Glory Hole Thermoplastic Rubber TPR, Clear Chamber GPPS General Purpose Polystyrene, Vibrating Cup, Bulb Pump, Black Hole Insert Silicone. Sizes: Bulb Pump 5.125 inches by 2.125 inches by 2.125 inches, Clear Chamber Tube 11 inches by 2.5 inches by 2.5 inches, Hose length 12 inches. Vibrating pump requires 2 AA batteries, not included.