This is an Exotek Traxxas Slash Adjustable Wheelie Ladder Bar Set, a heavy-duty double ladder wheelie bar set for the Slash 2wd based street eliminators. Constructed of heavy duty 2.5mm thick carbon fiber with four alloy posts, two alloy ball bearing raced wheels and alloy steel hardware. Extra long wheelie bar provides maximum stability when riding on the rear wheels. 12" bar from wheel to axle meets 2021 NPRC race rules. Slotted bar mount design allows easy adjustment to the mini wheel height, to fine tune your launch.