4pcs Upgrade Pure Copper Tire Valve Stem Cap Tire Pressure Cap Tire Pressure Monitor Sensor Indicator with Wrench Nut

The new upgraded pure copper material has excellent corrosion resistance, effectively preventing and oxidation. This means that the pure copper valve cap maintain good use for a longer period of time in a wider environment. Pure copper material be used to manufacture very precise components, so the pure copper tire valve pressure detection cap provide excellent sealing effect, effectively prevent gas leakage, and stabilize the air pressure inside the tire These car tire pressure caps fit 32 psi (2.2 Bar) car, motorcycle, bicycle, etc. Visual warning when tire pressure is low Tire pressure caps prevent premature wear and puncture caused by low air pressure tires, increase fuel economy, safety and control, and extend tire life Green/Yellow/Red system indicates proper tire pressure level Displays tire pressure according to the color cognitive Green indicates tire pressure is normal, yellow indicates that air pressure is 10% lower than standard and red warns that air pressure is 25% lower than standard Package Includes: Tire pressure caps x 4, Anti-theft nuts x 4, Small wrench x 1

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