A. Made of durable material, stronger and more durable in appearance. B. Easy to use and easy to replace. C. Suitable for: ZD - 10 1/10 RC Car. D. Hex: 12mm. E. Thickness: 11mm. F. Weight: 14g. G. Tool Supplies: Assembly Category. H. RC Parts & Accs: Servo Accessories. I. Use: Vehicles & Remote Control Toys. J. Technical parameters: Value 2. K. Remote Control Peripherals/Devices: Receivers. L. For Vehicle Type: Four - wheel Drive: Assemblage. M. Wheelbase: Screws. N. Color: Orange. O. Material: Metal. P. Package Contents: 1. 4 x Wheel Hex Hub Adapter. 2. 4 x Pin. Q. Only the above package content, other products are not included. R. Note: Light reflection and different displays may cause the color of the item to be a little different from the real thing. The measurement allowed error is +/- 1 - 3cm.