The screw cover mold opened according to the original car, precise and tight fit. Comprehensive coverage to protect tire hub screws,absolutely beautiful,practical and improve your car grade. Optimized and imported silicone material,bright in color, make it safe and eco-friendly. Effectively prevent your car wheel hub screws from rust and corrosion,with super anti-scratch and wear-resistant, ,high temperature resistance, and will not affected by weather. Durable and easy to install. High flexibility keeps it tight fit,and the wheel screw protection cover has a great contraction force, and it is not easy to fall off once installed. Material:Silicone Interior Diameter: 19mm,Compatible: Fits 19mm wheel bolts It prevent the screws from rusting.It is durable and toughness.Easy to install, just press the nut covers straight to the bolts.Wheel nut covers which can both protect and decorate the wheel bolts of your car.