This really is a fluorescent yellowish form of the Mini 4WD front under guard, which functions as a braking system helping your car stick to track after jump landings. Its 3-piece setup allows both normal and wide roller settings. Two sets of underneath guards with various thicknesses are included for use with large and tiny diameter wheels.
• Front Under Guard x 2 sets
• Molded in Fluorescent Yellow low-friction PP plastic.
• Compatible with MA, MS, FM-A, AR, VS, Super XX, and Super-II chassis cars.