New heavy-duty suspension arms for Slash, Stampede, and Rustler feature an all-new design which incorporates our latest proprietary composite material. Traxxas designed this composite specifically for high loads and hard landings with just the right amount of flex to resist breaking‚‚‚¢‚‚‚‚€‚‚‚‚”even in cold weather. Whether you‚‚‚¢‚‚‚‚€‚‚‚‚™re sending it at the skate park, or preparing for the next speed run, these arms were built for extreme punishment.