So easy to use… just plug it into your car's cigarette lighter for power, slip the universal adaptor over the tire valve and it's ready to inflate! Includes built-in pressure gauge, quick-connect air compressor hose, 3-meter cord with 12v DC cigarette plug, 3 nozzle adaptors, and inflator/deflator switch. Powerful 260PSI compressor inflates car tires, bike tires, rafts, sports equipment easily and quickly. Plastic unit 3"H x 7"Dia.