Automatic Rock Hard Pump

No squeezing, no pumping, just press the button for automatic suctionCompact, quiet, automatic pump controller is designed for one-hand operation and superior suctionClear cylinder with flanged base and measurementsFlexible, non-crimping, detachable hoseHigh quality tapered sleeve for comfort and secure sealAutomatic release buttonEZ activation power switchSilicone (sleeve) ABS (cylinder and controller) PVC (hose)2AA batteries7.75”x 2.25”/20 cm x 6 cm