4PCS/set Universal Tire Pressure Caps

Proper car maintenance is equal to safer journeys. Replace all your tire caps with this set that helps you monitor your tires' pressure effectively. These caps help you avoid guessing that could lead to a bad decision of bypassing the need to have your tires monitored. Buy this set of caps today and be safe on the road! Universally fits any standard size tire.--- The cap will change color when its pressure goes down. Green indicates a normal pressure, yellow indicates a warning and red means that your tires' pressure is dangerously low.   With these Pressure Monitoring valve caps you can tell at a glance whether there is a tire inflation problem.  Easy application: Just unscrew the original cap and screw into the tire pressure monitoring valve caps.Tire Pressure Monitor Valve Stem Caps could also be used on motorcycle tires and bicycle tires. Installation: Determine the correct tire pressure for your tires Inflate tire to correct pressure Install this new pressure cap tight Simp