These duralumin move shafts ended up being designed to be utilized on M-07 and M-08 chassis universal shafts, adding to a efficient and durable drive train! • 33mm Lightweight Aluminum Swing Shafts x2 • Drive pin and cross shaft position are 90 amounts apart for smoother rotation under power. • Tamiya blue anodized finish. • ideal for M-08 Concept and M-07* framework automobiles. • NOTE: M-07R framework cars need solutions 51444 and 51445.