4-Pack Universal Tire Pressure Monitoring Valve Caps With Visual Indicators

4-Pack Universal Tire Pressure Monitoring Valve Caps With Visual Indicators NOTE: Valve stem colors may vary from picture based on manufacturer Inflate tire to correct pressure. Install new pressure monitor cap tight. Simply look at the color to know if your tire is low or normal. 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. 100% Brand New and High Quality Packing content: 4pcs Tire Pressure Indicators