The Airman Compact Air Pump is a powered ball and tire pump designed for use to inflate wheelchair tires. This compact high-pressure air compressor quickly inflates pneumatic wheelchair tires and can be used to inflate sports balls. The unit has a built-in pressure gauge and comes with a ball adapter, balloon adapter, and owner's manual. POWER: Uses 12-volt car cigarette lighter adapter (included). DIMENSIONS: Adapter cable is 3.4 meters.