Features 1、Fastening Function: These 12mm hex wheel hubs have excellent fastening function, improving the stability of RC car and ensuring excellent performance. 2、Applicable Model: These 12mm hex drive adapters are suitable for MJX 14210 14209 1/14, for 16207 16208 16209 1/16 RC car, and other models. 3、Aluminum Alloy: Made of aluminum alloy, these hubs have high strength and wear resistance, and not bend easily under pressure or high temperature. 4、Replacement Parts: These hex drive adapters have a reasonable design and standard size, which can directly replace old or damaged RC car parts. 5、Easy Installation: Includes 4pcs 12mm hex wheel hub mounts, and equipped with 4pcs fixing pins to ensure convenient installation and replacement. Item Type: 12mm Hex Wheel Hub Material: Aluminum Alloy Adapter Diameter: Approx. 12mm / 0.47in Adapter Thickness: Approx. 6mm / 0.24in Applicable Model: For MJX 14210 14209 1/14 model, for 16207 16208 16209 1/16 RC car Package List 4 x Hex Wheel Hubs 4 x Pins