Universal: The inner diameter of the wheel nut cap is 17mm, which is suitable for most car hex nuts. And the bolt covers are good for dust, also can decorate car tires. Long time use: These wheel nut caps are made of premium plastic material, sturdy and durable, they can serve for a long time, protect the wheel bolts. Easy to use: just press the cap on the nut directly on the bolt. And the package includes 20 pieces of tire screw covers. Also include a black plastic clip to remove the nut cap. The black color is a perfect match. The fits are very tight and won't come loose easily when riding. They can be removed and replaced with care. The nut cap has an anti-rust feature to prevent the screw from rusting. Makes a difference in the appearance of the wheels. Start with one screw to take care of your car. Specification: Material: Plastic Color: Black Internal Diameter: 17mm Total Item Weight: 60g Package includes: 20 pieces of wheel bolt caps 1 piece of black clip Warm advice: please check if the size fits you before buying. Thank you."