Product Description: Made of solid plastic, very durable and well constructed, with anti-slip stripes on the surface of the valve cover dome, it's effortlessly to screw on by your fingers,install or remove easily when check your tire air pressure. Upgraded idea: These valve caps with rubber O-ring gasket inside provides a nice tight moisture and air seal for your valve stems, seals dust out of the valve stem top, protects the valve from damage, rust, and corrosion, prevent tire from air leakage well, extend your valve stem life. Esay to install: All tire dust cover has stripes around the top dome shape, easier to grab and tighten, more convenient. Screw on tightly: You can screw on all the way to the bottom of the valve, no more worried if your tire caps would fall off like others, grip on your valve stem firmly, good for a long and tough drive. Universal tire stem valve caps: These dust covers for wheels helps keep tires inflated at the proper level on bikes, cars, SUVs, trucks, and other motor vehicles. Multi purposed valve caps can protect valve from dirt, dust and corrosion. Convenient: Installation only need screws it onto tire valve stem. Wide usage: Designed to fit for cars, carts, trailers bikes,motorcycles electric bikes and a bicycles, also perfectly fit for motorcycle tire with American schrader valves. Widely used in car repair shops and cap replacement for home vehicle tire. Product Specification: Material: High Quality Plastic Size:10*13mm Package Includes: 8 x Tyre Valve Caps