For ease of use, the automatic tire inflators will inflate your tires to a set pressure, it's that easy. The new AUTOMATIC MOBILE CAR TYRE PUMP is a car tire pump that can pump your car tire within a few seconds in any situation. it's fast, convenient, and easy to operate. save time, money, time, and think safety.Its powered by a cigarette lighter port. with its ruggedness, it can pumpJeep, SUV, Space bus tire as well. It's a must for every car owner.