Traxxas 5853X Blue-Anodized Aluminum 17mm Wheel Hub adapters, (set of 4) Set of four splined 17mm wheel nuts and hubs Blue anodized aluminum Includes hub retainer M4x0.7 (4)/axle pin (4)/wrench, 5mm 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, consult your user's manual for exact parts listings