This item is a professional tire air for your bike or car. Made from , it is durable and practical for long time use. With anti-slip stripes on the surface of the cover dome, it’s effortlessly to screw on by your fingers, install or remove easily when checking your tire air pressure. Features - Color: Black. - Material: Plastic. - Size: About 1.20X1.00X1.00cm/0.47X0.39X0.39in. - Made of solid plastic, durable and well constructed, with anti-slip stripes on the surface of the cover dome, it’s effortlessly to screw on by your fingers, install or remove easily when checking your tire air pressure. - Fit for different brands of car and bike tires. Package includes 200pcs stem covers, meet all your stem cover needs for months. - Provide a nice tight moisture and air seal for your stems, seals out of the stem top, protect the from damage, prevent tire from air leakage, and extend your . - 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 stem firmly. - Widely used in car repair shops and replacement for home vehicle tires. Package list: 200 x tire caps