No more greasy hands from petrol forecourt tyre inflaters now you can maintain correct tyre pressures with your own powerful deluxe air compressor simply plug into your car lighter socket pre set the tyre pressure required on the lcd panel connect to tyre valve and switch on it automatically switches itself off when the correct tyre air pressure has been reached compact and lightweight it simply stores in your boot or glove compartment when not in use clipped underneath you will find var