Feature:1. MAINTAIN STABILITY: Wheel hex hub extensions can help improve the stability of RC cars, especially during high speed cornering and handling, very practical2. EASY TO INSTALL: Hex hub extensions require only simple tools to install and remove, and you can operate by yourself, without the help of professionals3. COMPACT AND LIGHTWEIGHT: RC wheel hex spacers are small in size, light in weight, do not increase the burden of remote control car, possess solid and stable structure, not easy to deform4. COOL AND VIVID: Exquisite appearance and stable performance of wheel hex spacers make your remote control car look more vivid, cool and practical5. APPLICABLE MODEL: RC hex hub extensions can be used for AXIAL, for Traxxas, for hsp, for redcat, for tamiya, for hpi and other brand remote control vehiclesSpecification:Item Type: RC Wheel Hex SpacersMaterial: Aluminum alloyDiameter: Approx. 12mm or 0.47inLength: Approx. 17mm or 0.67inApplication: For AXIAL, for Traxxas, for hsp, for redcat, for tamiya, for hpi and other brand remote control vehicles.Package List:4 x Hex Spacers4 x Tire Lock Nut4 x Pin