To get big on-the-go the Get Hard Power Pump is the number one gadget for erection enhancement. With easy to use one-handed controls and three levels of suction you'll never be caught short. The removable sleeve means easy cleaning and the flanged base keeps you sealed and secure. Use the universal measurements to track your progress then activate the quick air release valve which relieves pressure while maintaining suction. PS plastic cylinder with silicone sleeve. Requires 3 AAA batteries (not included). 7.5” x 2.25”/19 cm x 5.75 cm.