This is the Flash Point R/C Magnetic Wheel Wrench Combo. It’s a machined light weight 17mm wheel wrench that has a built-in magnet. One end of the wheel wrench is open and allows you to remove the set-screws the hold the pin and wheel hex on the driveshaft. The wrench combined with the new Flash Point Wheel Nuts makes tire changes quicker and ensure you’ll never lose a wheel nut during a tire change. The captured and knurled wheel nuts have a small steel screw and nut that insure you’ll never lose a wheel nut during a tire change. The wheel nuts are captured to keep dirt out of the axles and are knurled to lock the wheel nuts in place during long main events. The wheel nuts are designed to fit any 1/8th buggy and truck that use a 17mm wheel hex.