Description: High upgrade parts for your model car. Widen the body. The coupling itself will not change the degree of the hub. If the 03 hub is converted to AWD, the degree will become larger. The degree standard of the 03 hub and the AWD hub is different, and the coupling acts as a conversion. Easy install & CNC precision manufacturing. Universal for 1/28 rc car, such as for KYOSHO, or for ZERO-Z, or for MINI-Z, or for MR-03 rc car parts. Specification: Material: Metal Size Chart: Inner Diameter: 2x3mm/0.08x0.12inch Package Includes: 4 Pieces RC Car Wheel Hub to AWD Coupling Conversion Adapter Note: 1. Please allow slightly error due to manual measurement. 2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. 3. Wish you a wonderful on-line shopping!