The PIAA 360 brackets are made from machined aluminum and powder coated for durability. The light mounting base come with multiple inserts for a wide range of fitments. (7/8 in., 1 in., 1-1/8 in. & 1-1/4).Specifications: Description_DES 360 Series Universal Mounting Bracket Kit Description_EXT 360 Series Universal Mounting Bracket Kit; Incl. 2 Mounting Brackets; 3 Inserts; For Use w/7/8 in./1 in./1 1/8 in./1 1/4 in.; Description_FAB Incl. Two PIAA 360 Mounting Brackets For Easy Installation Description_FAB Incl. 3 Inserts To Fit Various Tube Sizes 7/8 in. 1 in. 1-1/8 in. 1-1/4 in. Description_FAB Machined Billet Aluminum Construction Description_FAB Sleek Black Anodized Finish Description_FAB Effortless Installation Process Description_MKT The PIAA 360 brackets are made from machined aluminum and powder coated for durability. The light mounting base come with multiple inserts for a wide range of fitments. (7/8 in., 1 in., 1-1/8 in. & 1-1/4). Description_SHO OrdRacingLampMnt