Specific: Item Name: Air Filter Protective Cover. Material: Nylon PA66 Optional Color: Black/Grey /red/yellow/blue/green/purple Size: as picture Fitment: Suitable for all 19mm screws 【Function】 the caps lug nut cap has anti-rust function and the bolt cap is good for dust prevention. It can protect and decorate car wheel bolts and make the wheel appearance unique. Start with a screw, take care of your car 【Function】The wheel nut caps have anti-rust function, and the bolt cap is good for dust prevention. It can protect and decorate car wheel bolts and make the wheel appearance unique. Start with a screw, take care of your car 【High Quality Materials】These wheel nut covers are made of high quality PA66 nylon, strong and durable, can be used for a long time and protect the wheel bolts. 【Easy to install】 just press the nut cap directly onto the bolt. The package contains 20 sets of tire screws, which are very closely matched and will not easily fall off when driving. These wheel nut caps