4 Pcs Car Tire Pressure Gauge Monitor Valve Cap

Description

Durable and practical With transparent window, any abnormal tire pressure will be displayed in time. It ensures normal tire pressure, reduces tire wear, and extends tire life.
Car tire pressure monitor valve caps help to avoid premature tire wear or blowouts from under-inflated tires,increases fuel efficiency, safety and control, extends tire life
Green/yellow/red system indicate level of proper tire inflation.According the recognize color to display the pressure of the tire,Green shows that tire pressure is normal Yellow shows that the pressure is 10% lower than standard Red alerts you that the pressure is 25% lower than standard

Fit on any standard size existing tire valve stem