This is a set of optional parts for Mini 4WD car models.
Stylish dark blue anodized aluminum lock nuts, great for securing rollers, mass dampers and so on. They feature a resin section for the screw to bite into, minimizing the possibility of their coming loose due to shocks and vibrations. Use them for a supremely reliable ride.
Compatible Cars: Mini 4WD and Mini 4WD PRO cars (Some chassis and bodies may require modifications)