The XB8 Mud Scraper is CNC-machined from strong graphite item, and it is easily put up inside composite backside hub companies by the two included screws. The mud scraper is very good whenever operating in damp and dirty racing conditions, as it allows you to remove mud through the inner the main tires, allowing the buggy to leap entirely. A "must have actually" for serious racers or anybody bashing in dust and mud.