4pcs Universal New Car Air Alert Visiable Stem Caps Air Pressure Valve Sensor Indicator Tire Gauge

Label:Yes Inflate tire to correct pressure. Install This new pressure cap tight. Determine the correct tire pressure for your tires. Simply look at the color to know if your tire is low or normal. 100% Brand New and High Quality

Green shows that tire pressure is normal. Yellow shows that the pressure is down about 5 pounds. Red alerts you that the pressure is down by at least 10 pounds.

Packing content:

4pcs x Tire Pressure Indicator