Item Name: Visiable Warning Sensor Indicator Air Pressure Valve Stem Caps Tire Gauge. Simply look at the color to know if your tire is low or normal.Install This new pressure cap tight.100% Brand New and High QualityDetermine 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 *
