Why pump by hand if you don't have to Let the NRS Blast Inflator Pump do the work for you. Its compact size and rugged durability will last for years. This 12-volt pump is capable of inflating to 2psi for a fast and easy inflation. It also deflates making it quick and easy to get your inflatable packed back up. Comes with an adaptor to fit a wide variety of valve types. Inlayed rubber insulates from heat and sound while providing a more secure grip. 12 foot power cord allows you to easily inflate your boat near your vehicle. The Alligator clamps allow quick and easy connection to your vehicle's battery.