* DUAL HEAD CHUCKS DESIGN: wheel air gage is equipped with two zinc alloy head push-pull chucks, 30 degree forward head is specially designed for inner/single wheels or hard-to-touch valves, and 30 degree reverse chuck for outer wheels. 6" long stainless steel stem, allow you to reach the inner wheels without dirty your hands
* ACCURATE PRESURE GAUGE: 4 sides white ABS scaleplate with black clear marks scale 10-120PSI, perfect for truck, bus, car, suv, rv, atv, bike (with schrader valve) or motorcycle. Pocket-size pencil style and pocket clip are desiged for easy storage. There are also 4 free plastic valve stem caps for replacement
* EASY TO OPERATE: Twist off the valve cap, press the mechanical tire gage chuck to the valve, then the scaleplate will slip out and you can read the tire pressure from the scaleplate. After using, please twist on the valve cap and push the scaleplate back. No battery needed. For sedan, 28-35PSI is perfect