This is the factory replacement plastic rear hub for the SWORKz S12-3 1:10 2WD buggy, sold as a single piece. It serves as the rear upright, locating the rear axle and providing the mounting points that connect the suspension geometry. The part is molded in black plastic and is a direct fit for the S12-3 platform. Features: Single piece included Black molded plastic construction Rear upright hub carrier Direct factory replacement for S12-3 7/7/26 cs