CNC machining. Aluminum shell Anodic oxidation coating. and durable design Hardened steel gear. Hardened steel transmission shaft. Ball Aluminum servo steering link. 45 degree steering maximum The door shaft provides higher ground clearance and reduces on other driveline components to performance. Suitable for axial1/18 Capra UTB18 RC Car Weight: Front axle: about 202g Rear axle: about 163g Tool Supplies:Assembly Category RC Parts & Accs:Servo Accessories Use:Vehicles & Remote Control Toys Technical parameters:Value 2 Remote Control Peripherals/Devices:Receivers For Vehicle Type: Four-wheel Drive :Assemblage Wheelbase:Screws color:Black Material:Metal Package Contents: 1 x Front Portal Axle 1 x Rear Portal Axle 4 x Brass Wheel Hex Adapter 4 x Pin 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 a little different from the real thing. The measurement allowed error is +/- 1-3cm.