Reverse thread axles compatible with your Reflex Racing RX28 and GL/Atomic cars. By reversing the thread and using a screw instead of a nut, the front end of your car is less likely to snag into the RCP rails when running lower offset wheels. The kit comes with 2 Axles, 4pcs of M3x0.5 Copper Shims and 2pcs of M2x4mm button head screws.