Apollo Automatic Power Pump Smoke probably the most hi-tech pump currently available massive results! The American Pumpers Association. Simple to use with unparalleled suction. Fully automatic pressure control using the push of the mouse. Auto start/stop button. Quick air release valve. Ergonomic hands-held controller with push button controls. Readable Brought display measures PSI vacuum inside cylinder. Textured grip, extra-large cylinder with universal measurements. Flanged base for any secure seal. Body safe donut. Safe and pure for body and pleasure made using phthalate free materials PC cylinder, Abs plastic, fiberglass with memory PU Cote controller, Thermoplastic Rubber TPR donut, Silicone hose. Automatic penis pump requires 4 AAA, not incorporated. Bulk Weight: 13.7 ounces. 10 inches by 2.5 inches cylinder. Category: For Males, Pumps, Non-Vibrating