Requires technical internal fitting, the modded controllers must be opened to install.The tools required to replace the buttons are included in the package.Watch installation video on Youtube will be helpful if you do not know how to install them, be careful and patience will avoid some unnecessary mistakes.BROAD COMPATIBILITY Xbox One ControllerXbox One S ControllerXbox One X ControllerOfficial Sony PlayStation 4 controllersThe replacement joysticks don't compatible with Xbox 360 Controller.LIGHTWIEGHT & DURABLE The top and sides are coated with hard rubber, which makes them last longer than the original rubber joystick.