These brackets, sold in a set of three (3), are fastened to the Foxwing Awning which in turn fastens to the side profile of your Front Runner Slimline II roof rack. Pre-cut holes designed specifically for the Foxwing Awning to allow easy attachment. No drilling required. Each bracket fastens to the t-slot system on the top and bottom of the Slimline II roof rack side profile. Made from 3CR12 stainless steel to ensure durability, and black powder coated with the same weather resistant coating as the Slimline II roof rack.