Easy to install, Upgrades part for 1/18 TRX4M RC Crawler,The Carbon Fiber construction makes the TRX4M Chassis KIT more sturdy.Come with shock spacer(4mm X4 & 5mm X4) and multiple shock mounting points for better suspension tuning.Compatible with lay down servos and stock servo.Come with Battery Tray, ESC Tray & Side Plate. You can freely choose different electronic devices to configure your 1/18 TRX4M Crawler.Item name: RampCrab chassis kit for 1/18 TRX4MMaterial: Carbon Fiber & aluColor: BlackYou will receive:A SET of Chassis for TRX4M, All necessary mounting hardware, Battery Tray, ESC Tray & Side PlateNote:Please check your specific model's manual for compatibility, or contact us.