There are tutorials online that explain how to install them. I'm not super gifted with my fingers, but the disassembly / reassembly of the joystick is relatively simple. It's a little scary but the handle after walking again. The reassembly is a bit of a chore but nothing insurmountable. Attention dismantle the joystick to install this stuff blew warranty. The sticks look like sticks formal rights, and as the real ... they get damaged after some time. It seems inherent in their use, alas.