The correct tire pressure is the most important aspect of safe driving. This portable air inflator can help you with this. With the 4 intelligent inflating modes and max. 150psi pressure, this air compressor is compatible with Cars, Bikes, Motorcycles, Balloons, Basketball, etc. Just preset the tire pressure you want, it will inflate tires to the desired pressure in a flash, and then automatically shut off when the required tire pressure is reached to prevent the tire from over-inflating. The space-saving size makes this pump easy to store in the car when not used it.