Description:It prevents the screws from rusting.Protects your bolt heads from corrosion.It is durable and tough. No distortion, no fade, and no problem under extreme temperature.Easy to install, just press the nut covers straight to the bolts.Wheel nut covers can both protect and decorate the wheel bolts of your car.Made of rubber material, works sturdy, a good replacement for your car.Enhances the finish of your car wheels.The product does not suitable for round anti-theft screws.Specification:Shell Color: BlackMaterial: RubberClip to Clip Inner Diamter: 15mm / 0.59"Height: 2cm / 0.79"Dimension: 2 x 2 x 2cm / 0.79" x 0.79" x 0.79" (L*W*H)Suitable for installation diameter 16-17mm.Installation Instruction:Clean up the screw area of the auto wheel hub with a towel before installation.