4pcs Useful Warning Monitor Car Air Alert Stem Caps Air Pressure Valve Tire Gauge Sensor Indicator

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

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