Feature: 1. Application: This replacement wheel hub is applicable for 1/10 RC simulation crawler, universal type can be used with confidence. 2. CNC Processing: The locking tire weighting design processed by CNC can effectively reduce the gravity of the RC car and improve the performance. 3. Reasonable Design: Increase the wheel weight by adding more wheel hubs, reduce the center of gravity of the vehicle, and improve handling. 4. Strong Support: It can provide strong road support, and its high wear resistance enables it to withstand hard roads and rugged driving for a long time. 5. More Stable: Make the RC car more stable, fearless of any terrain, increase the stability of the tires, and make your RC car more cool and attractive. 6. Eco Friendly: It is made of premium aluminum alloy materials, safe, eco friendly, durable, not easy to deform, and has a long service life. Specification: Item Type: 2.2in RC Wheel Hub Material: Aluminum Alloy Gross Weight: 474g / 16.7oz Type: RC Accessories Diameter: Approx.64mm / 2.5in Thickness: Approx.36mm / 1.4in Hex Driver: Approx.12mm / 0.5in Tyre Tread Applicable Size: 2.2 inches Suitable: for Traxxas, for Defender, for Axial SCX10 SCX10 II 90046 90047 1/10 RC simulation crawler installation. Package List: 4 x Hub Note: 1. Please allow 1‑3mm error due to manual measurement, thank you!2. The calibration of the display is not consistent, and the color of the item displayed in the photo may be slightly different from the actual object.