This is a set of four Hudy CNC-machined aluminum nuts, and are intended for use with the Hudy 1/10 off-road set-up system. These nuts allow you to quickly and easily install your vehicle into the Hudy 1/10 off-road set-up system without the use of tools. They can also be used to quickly mount a set of tires for ride height adjustment, saving time and effort. These dual sided nuts feature 4mm threads on one side, and 8/32" threads on the other so they will work with multiple thread pitch axles. Additionally, the heavy knurling allows plenty of grip for your fingers so the nuts can easily be installed and removed from the axles.