Use:Vehicles & Remote Control Toys RC Parts & Accs:Transmitters Remote Control Peripherals/Devices:Remote Controller Four-wheel Drive :Assemblage Tool Supplies:Assembled class For Vehicle Type:Cars Technical parameters:Value 2 Upgrade Parts/Accessories:Trigger Arm Item: Remote Control Brake Rod Compatible with: Futaba 7PX 4PX 4PXR RC Car Transmitter B Radio This stylish addon replaces the stock plastic, and is designed to enhance the overall feel,accuracy, and of course looks of your remote control CNC machined,Increased strength and precision. Easy upgrade from the part. Well made and durable colour:Red Material:metal Package Contents: 1*Trigger Arm 1*screws Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.