These mounting feets are designed to slide into the bottom channels of the Unite Series light bars, to allow for a wider range of mounting points. This kit also comes with side plates to cover the bar ends where the traditional wing mounts were mounted.The curvature of each mount also allows you to adjust the height of the beam angle up or down, so you can place the light where it's needed most.Made of stainless steel, they are available in one or two pairs. For 40"-50+" light bars we recommend using 4 mounting feet for extra rigidity.