Zinc Alloy Material --- Truck bull balls are made of high quality zinc alloy material, which is durable, safe and environmentally friendly, and has a long service life.

Lower Center of Gravity --- Lowering the center of gravity by increasing the weight of the RC car aids in climbing, improves stability, handling, and more attractiveness.

Realism --- The realism and simulation aspects are well done to make your rc car look cooler and more unique.

Decoration --- Decorate your model car to make it more attractive, simulation decorations make your car cooler.

Lightweight and Portable --- Bumper balls bull nuts do not take up space, easy to carry when going out, light and portable.