This is a pair of replacement Drive Shafts (dog bones) for the HPI Wheely King RTR. FEATURES: Steel construction, black in color Replaces worn or damaged dog bones YOU WILL RECEIVE: Two Drive Shafts (dog bones) REQUIREMENTS: Installation following the model manual SPECIFICATIONS: Length: 3.35" (85mm) Diameter: .20" (5mm) kpm03/01/2007 ir/jxs &