This is the optional MIP Spline Center CVD Kit for use on the Axial SCX10 Rock Crawler. FEATURES: Steel construction Black in color INCLUDES: Two Spline Dog Bones Two C-Drive Hubs Two C-Drive Female Bones Two Axles Four Couplers Four Set Screws Four Lock Nuts Four 2x15.5mm Pins MIP Decal Sheet REQUIRES: Installation on CVD assembly jxs 06/19/11 ir/jxs