This Kyosho factory replacement Roll Damper Set is designed for the Mini-Z MR-03 chassis platform. The set includes carbon fiber composite mounting plates, rubber damper discs, multiple springs of varying rates, blue anodized aluminum hardware, and the necessary screws and nuts for installation. The roll damper system mounts to the chassis to help control body roll during cornering, and the inclusion of multiple spring options allows tuning to suit different track conditions or driving preferences. Features: Includes multiple springs for adjustable damping rate tuning Carbon fiber composite mounting plates Blue anodized aluminum hardware included Complete hardware set included for direct installation 7/7/26 cs