The tire pressure monitoring caps are great for any vehicle, including cars, trucks, and SUVs. They offer a quick and convenient way to check your tire pressure without needing a separate gauge. The caps feature a clear, easy-to-read indicator that changes color based on the pressure level, allowing you to see if your tires need attention. This can help prevent tire wear and extend the life of your tires. Features - Color: Assorted Color -Material:Copper, plastic - Size: 7.00X2.50X1.00cm/2.75X0.98X0.39in - Size: 2.30X1.10X1.10cm/0.90X0.43X0.43in - Size: 1.30X1.20X1.00cm/0.51X0.47X0.39in -Safety assurance: the tire pressure warning cap allows you to monitor tire pressure in , ensuring safe driving conditions at all times -Extend tire lifespan: by detecting abnormal tire pressure early, the visual tire pressure monitoring cap helps prevent excessive wear and tear, extending the life of your tires -Quick installation: no need for professional tools, the tire pressure warning cap can be easily installed on the tire valve, providing a quick and easy setup -Wide compatibility: suitable for various types of vehicles including private cars, , and offroad vehicles, the visual tire pressure monitoring cap meets diverse vehicle requirements -Economic benefits: proper tire pressure maintenance reduces rolling resistance, decreases fuel consumption, and saves on fuel costs, enhancing overall economic benefits Package list: 4pcs x tire pressure monitor (4 caps + 4 nuts + 1 wrench)