Smittybilt accessories are dependable and strong accessories made from fully-welded 16 gauge 1 inch steel tubing which is round in shape and features a stylish finish of black powdered textured coating. For proper installation, Smittybilt Defender roof racks need accessories such as Adapter Brackets ( 4 x 4 X 8in. ), Adjust A-mounts, Light cages and roof rack tires, just to name a few. They are designed to last for years with no complications and great ease in installation. Smittybilt accessories allow for welded light tabs (4 front & 2 rear) and incorporated flooring to increase flooring space and functionality.