This 12mm wheel hex set provides you with the parts you need to run 12mm hex wheels on your ARRMA vehicle.Features:Constructed from high quality aluminum material - Precision manufactured for easy fit to your model - High strength steel pins - Retaining set screws included  Includes:4 x 12mm Aluminum Wheel Hex 4 x 10 x 2.5mm Pin 4 x M3 x 3mm Set Screw