Metal Upper Lower Swing Arm Control Cup Set for 1/10 WPL D12 D42 Four Wheel Drive RC Micro Truck Car Repair Upgrade Accessories Feature: 1, Aluminum Alloy (CNC) Machining (Compared to the shopdie casting model, the difference is that the material and precision have their advantages, just choose the one you like)2, directly replace the original plastic parts without modification Specification: Product Name: Metal Upper Lower Swing Arm Steering Cup Set Upgrade AccessoriesMaterial: Aluminum Alloy Weight: 60g Suitable for: WPL D12 D42 Remote Control Truck Package List: 1 x Metal Upper Lower Swing Arm Control Cup SetNote: For installation, please refer to the use position of screws and ball heads, as the picture below. It is recommended that all screws be coated with screw glue. (with screw glue, heating is required when disassembling)