4 Pack Tire Valve Stem Caps Pressure Monitors

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Dailygrab Pressure monitor

Tire Valve Stem Caps Pressure Monitors fits on any standard size existing tire valve stem. Visually alerts you when the tire pressure is low to help avoid premature tire wear or blowouts from under-inflated tires. Green shows that tire pressure is normal, Yellow shows that the pressure is down about 5 pounds and Red alerts you that the pressure is down by at least 10 pounds.