Traxxas 6850X Heavy-Duty Half Shafts with metal U-Joints (2 inner, 2 outer) Plastic and steel construction Black in color Replacement for worn or damaged shafts Use Traxxas stock and hop-up replacement parts to get the most out of you Traxxas RTR vehicles This product is made from high quality materials and designed for lasting performance This is for use on RC vehicles such as the Traxxas Stampede 4x4; consult your user's manual for exact parts listings