Automatic Sta-Hard Pump

No squeeing, no pumping, just press the button for automatic suction Compact, quiet, automatic pump controller is designed for one-hand operation and superior suction Clear cylinder with flanged base and measurements Flexible, non-crimping, detachable hose High quality tapered sleeve for comfort and secure seal Automatic release button EZ activation power switch Silicone (sleeve) ABS (cylinder and controller) PVC (hose) 2AA batteries 7.75x 2.25/20 cm x 6 cm