FlatFace introduces the all new professional team preferred bushing system. Made of a specially formulated material, these bushings allow better flexibility and response, ideal for loose trucks that adapt to your riding style and lock in smoother to grinds. For looser, most responsive trucks use only the top washer. For tighter trucks, use both the bottom and top washers. These bushings fit great on all trucks, and can be used on Blackriver Trucks as well as more simple trucks such as Dump trucks, Bollie trucks, etc.