New Heavy-duty, durable aluminum construction resists rusting Adjustable to 9 different positions for flexible display options Holds flag poles up to one inch diameter Includes four M4x30 cross head screws and plastic anchors for easy installation Mounting plate dimensions are 3.875-in x 2.4375-in with one hole in each corner of the mounting plate Adjust the bracket angle by loosening the wing nut attached to the side of the bracket, moving to the desired angle, and tightening the wing nut Tighten the flag pole within the bracket by using the knob on the side of the bracket