Item Type: RC Car Chassis Frame_x000D_Material: Carbon fiber + aluminum alloy_x000D_Color: Black_x000D_Assembly Size: Approx. 203 x 43mm / 8 x 1. 7 in_x000D_Fitment:_x000D_For TRX4M Defender Bronco 1/18 RC Crawler 1Compatible Models: This chassis rail kit is designed for TRX4M Defender Bronco 1/18 RC Crawler, please make sure your model matches before buying. 2Premium and Durability: Made of durable carbon fiber and aluminum alloy materials, light weight, durable, better performance and long service life than ordinary plastic frames. 3More Shock Absorbing Mounting Options: Multiple shock absorbing mounting positions for maximum flexibility and less turbulence on the road. 4Excellent Performance: CNC machining, aluminum alloy small shaped parts, change the layout of the car, create a stronger climbing ability. It can lower the center of gravity and improve the performance of the RC crawler. 5Cool Style: The unique carbon fiber pattern design and style directly replaces the stock body and guide rail, making your remote control car look more realistic, cool and practical.