Description: Compatibility: The RC Car Upgrade Parts are compatible with ZD 9101 ,9102,DBX-10 1/10 buggy. & For ZD DBX-10 DBX10 10421-S 10423-S 10427-S 1/10 RC Car Material: Made of high alloy materials,CNC precision machining, accurate and stable performance. RC Car Replacement Parts: Perfect DIY RC car accessories, a good replacement for the old or broke one. High Upgrade Parts for Your Model Car: Upgrade parts to make your car more powerful and more stable, surpassing similar model cars. Fine Workmanship: Easy to install and durable in use,nice replacement parts to modify and upgrade your RC car. Size Chart: C Hub Carrier: 3.5cmx2.2cm/1.38inchx0.87inch Steering : 3.6cmx2.7cmx1.23cm/1.42inchx1.06inch Rear Hubs: 4cmx1.2cmx1cm/1.57inchx0.47inchx0.39inch Package Includes: you can choose 1 Pair Steering or 1 Pair Rear Hubs or 1 Pair C Hub Carrier or 1 Pair Steering 1 Pair Rear Hubs 1 Pair C Hub Carrier Note: Please allow 1-3mm measuring deviation due to manual measurement. Due to the different monitor and light effect,the actual color of the item might be slightly different from the color showed on the pictures.Thank you!