Features 1、High Quality Material: The remote control car accessories are made of high quality aluminum alloy material, which is environmentally friendly and durable. 2、High Accuracy: The 12mm aluminum wheel hex drive hub adapter is high quality, accurate in size and easy to install and replace. 3、High Performance: This hex coupler set improves the overall performance of the model car. It is durable and can be used for a long time. 4、Bend Resistant: These 12mm hex wheel hubs nuts are beautiful and won't bend like plastic under pressure or in high ambient temperatures. 5、Applicable: This RC car 12mm metal hex coupler set is suitable for 1/10 RC car, such as 1/10 for ARRMA Senton, for Granite, for Big Rock, for Typhon, etc. Item Type: 12mm Hex Wheel Hubs Nuts Material: Aluminum Alloy Adapter Diameter: Approx. 12mm/0.5in Combiner Height: Approx. 6mm/0.24in Applicable: 1/10 RC Car Universal (Such As 1/10 for Arrma Senton, for Granite, for Big Rock, for Typhon, Etc.) Package List 4 x Combiner 4 x Pin 4 x Set Screw 1 x Wrench