These are car tire valves stem caps, using aluminum alloy material, safe and can support long time to use. It has good sealing effect, can help avoid leakage, dust or dirt and other objects from damaging tire cores. Small size, light weight, easy to use and take to any places you need. Features - Color: black. - Material: aluminum alloy. - Size: 1.60X0.90X0.90cm/ 0.63X0.35X0.35inch. - These tire valves caps are suitable for most types of standard valves, good for most car to use. - Made from aluminum alloy material, safe, has high hardness, can withstand long time using. - You do not need other complicated tools, easy and convenient to install, time and efforts saving. - The tire caps are sealed, can prevent water, dust or sand coming into the tire, prolong the tire service life. - Can be applied widely, you can use them on car, bikes and motorcycles. Package list: x tire caps