Cold-rolled 1/8" steel plate with 1/2" x 1/2" backing tube for strength and to minimize vibration, as well as for wire routing. The D.O.T. approved LED light comes with two 30" wire leads for easy hard-wire into OE harness. Finish is all black '“ powder coated bracket and black ABS light bezel. Can be seen above up to 37" tires on our Swing-A-Way Carrier.