Features: 1.Made of high quality Nylon PA66 material,durable in use. 2.Exquisite appearance, sturdy, and dustproof. 3.Professional manufacturing, high reliability.Easy and convenient to install. 4.Anti-theft protection, high-end, fashion, high-quality materials, delicate craftsmanship. 5.Suitable for all 21mm screws (car Wheel hub). Specification: Features:_x000D_ _x000D_ Made of high quality Nylon PA66 material,durable in use. _x000D_ Exquisite appearance, sturdy, and dustproof. _x000D_ Professional manufacturing, high reliability.Easy and convenient to install._x000D_ _x000D_ Anti-theft protection, high-end, fashion, high-quality materials, delicate craftsmanship. _x000D_ Suitable for all 21mm screws (car Wheel hub). _x000D_ _x000D_ Specifications:_x000D_ Condition: Brand New_x000D_ Material: Nylon PA66_x000D_ Color: Black Gray Red Yellow Blue Green Purple (optional)_x000D_ Front cap size: 25.8mm_x000D_ Reverse inner diameter: 21mm,_x000D_ Side height: 24.5mm_x000D_ Cap low root size: 17.2mm _x000D_ Package Weight: Approx.88g/3.1oz_x000D_ Fitment: for 21mm wheel screws_x000D_ _x000D_ Package List:_x000D_ 20 * Hub cover _x000D_ 1 * Nylon clip PackageList: