4 x Universal Valve Caps with Tyre Pressure Indicator for Cars, Motorcycles, Bicycles, Car Accessories, 3 Colours

[Quick Visual Alert]: The car valve cap incorporates a convenient pressure indicator that visually alerts you when the tire pressure is insufficient. It allows you to quickly check the condition of tyres without tools, improving safety and tranquility on every ride [Tyre Protection]: The car tyre valve cap helps prevent premature wear caused by under-inflated tires. By maintaining proper pressure, it improves fuel efficiency, strengthens vehicle stability and extends tire life [Clear Color Indicator]: The car tire cap has a green, yellow and red indication system to show the level of tyre inflation. This simple visual marker allows you to quickly check the condition of the tyres before hitting the road [Easy Reading]: The corkscrew displays the tire pressure according to the visible color. Green means normal pressure, yellow indicates about 10% less pressure and red warns that inflation is necessary to drive safely [Wide Compatibility]: The electric corkscrew is suitable for pressure of 32-36 PSI (2.2-2.4 bar). Fits standard valve cars, motorcycles and bicycles. Be sure to keep the black washer to ensure a good seal