Install any wheel with a 21 mm bolt or nut.
Simply push the bolt down to fit it securely.
Enhance the smoothness of the wheel.
Protect the bolt head from corrosion.
Different colors for you to choose, make the exterior of your car more beautiful.
Color: Red,Blue,Silver (optional)
Material: ABS plastic
Package size: 16*15*2cm/6.3*5.9*0.8cm
20 * 21mm Nut Caps
1 * Removal Tool