Permanent Mounting Brackets - Model 02.6210 - For use with Two-Piece Arrow Boards: 02.6200, 02.6216, 02.6234 and 02.6252. Sold in sets of two brackets. Heavy-gauge epoxy coated aluminum. Enables mounting to existing racks, rooftops, tool boxes, etc. Includes hardware and instructions. 5-3/8" H x 1-5/8" W x 16" L