Compatibility: Compatible with Losi 1/10 Hammer Rey U4, Baja Rey;
Material Upgrade: Made of quality aluminum alloy 6061-T6, lightweight with great durability, hard-anodized colour, CNC machined PTFE-coated;
Advantage: Aside from the great looks, aluminum alloy will not flex as much as plastic under stress or during high ambient temperatures;
Hardness of Springs Choice: The silver springs and black springs have different hardness, you can choose the appropriate hardness according to your needs;
Service Guarantee: RCAWD has a professional service team, if you have any question during buying or installing, please contact us, we are committed to providing a satisfactory service.