The product includes :M1.2x5 Philips Screw-16pcsM1.2 Lock Nuts-16pcsProduct major function & use:Scaler accessoryAuthentic design with quality steel for great durability and attraction.Suitable for Traxxas TRX-4 Scale and Trail Crawler with Land Rover / Defender Body model 82056-4NOT appropriate TRX4 Tactical Unit model 82066-4To install, the component needs to be fixed with screws.