Points:1.ble And Reliable: Made of chrome-plated metal and PC materials, these tire caps are sturdy and of good quality. They also have a built-in air leak-proof seal to protect your tires from dust and dirt.2.Tire Preure Monitor: With 3 color eye alert r indicators, these valves stem caps help you monitor your tire preure easily and safely. Yellow means 10% below standard, red means 25% below standard, and green means normal.3.Extensive Application: These valves stem caps are compatible with medium-sized cars, bicycles, small cars, and motorbikes. They can withstand up to 35PSI or 2.4 bar of preure and are easy to screw on and off.4.Preserves Tyre Quality: By preventing air leakage and maintaining optimal tyre preure, these valves stem caps enhance the efficiency and safety of your vehicle. They also protect the valves core from dust, ensuring a longer service life.5.Easy Carriage: These valves stem caps are lightweight and portable, so you can take them anywhere you need. They are also small in size, which means they won't take up much space in your car or toolbox.These sturdy tire valves caps are designed to alert you when your tire preure is too low. Yellow color means you need to inflate your tires by 10%. They are easy to install and remove, and fit most small cars. Keep them in your glove box for portability and peace of mind.Specification:Item Type: Car Tire Preure Valves CapsProduct Material: Chrome-plated metal + PCProduct Size: about 1cm*2.5cm/0.4*1inchQuantity: 4Applicable models: Suitable for 35PSI (2.4Bar), for medium-sized cars, small cars, motorbikes, bicycles, etc.Packing List:4pcs*tire stem caps