The product is an OEM Ford F150 rear differential control switch knob designed for models manufactured between 2018-2022. This knob is specifically meant for controlling the rear differential of the vehicle, providing easy access and control for the driver. Made by Ford, this knob is an authentic part designed for optimal functionality and compatibility with the vehicle. It is a genuine replacement part for those needing to replace or upgrade their existing knob, ensuring a precise fit and performance.