From time to time at jump sections, Mini 4WD machines get caught on the course fence leading to retirement. This Front Under Guard has a three-piece design to be compatible with normal and wide roller settings and will greatly improve your machines success of completing the race. They also feature a skid angle design incorporated to assist breaking. Kit includes parts for use with large and small diameter tire machines. Can be used with Mini 4WD PRO, VS, and Super XX chassis machines.