Features: Ensures driving safety with our Tire Pressure Monitor Caps featuring real time air pressure tracking and color coded visual alerts, crafted from corrosions resistant copper alloy for year round durability. Engineered with premium copper cores and impacts resistant PC covers, these universally tire valves caps combine quick easy installation with precise pressure monitoring for multiple vehicle types. Ideal for frequent travelers, multi car owners, and novice driver seeking tire maintenance solution without mechanical expertise. Maintain optimal tire performances during highway commutes, road trips, or daily city drives through instantly pressure condition visualization. Suitable for standard valves across sedans, SUVs, and motorcycles, these copper tire accessories deliver professional safety monitoring through weatherproof construction. Specifications: Component: Copper,PC Color:Silver,Gold Size:Approx.25mm/0.98''x10mm/0.39'' Package Includes: 4Pcs Tire Pressure Monitor valves 1Piece Wrench note: Please allow 1mm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual color of the item.