This Round Trailer Light Bracket is made of rigid and durable steel, with a Powder Coated finish for a clean look that is resistant against corrosion. The Steel Trailer Light Bracket is designed to fit industry standard 4" Round Trailer Lights, the mounting holes on the face of this bracket are spaced 4 1/2" center to center. The Mounting holes for the Trailer Bracket to the Trailer Frame are spaced 4" center to center, and the Bracket can be installed in a vertical or horizontal orientation on your trailer thanks to the rigid steel construction. The overall dimensions of this bracket are 6" x 5 7/8" x 1 1/2".Features:-Black powder coated steel-Fits 4" Round Trailer Light-Horizontal or Vertical Orientation-Mounting Hardware not included