Editorial Review Function: Protect screw from dirt/ water/ rust.Compatible with most hexagon Tyre screw which size is 19mm / 0.75inches.Easy to install,add a color to your car.Car wheel hub screw cover, ideal replacements.Decorate car appearances, make your car particular and unique.Please measure the size of your existing wheel bolt before purchase.Instructions:Clean up the screw area of auto wheel hub with towel before installing.Align the screw head and press the screw cap directly into it,then complete the installation.Package Include:20 x Tyres Screw Cap