CE Smith 10303G40, panel bracket, 8", galvanized. Panel brackets bolt to your trailer frame and typically brace a keel or spool roller to help with the transporting and loading of your boat. They are once piece made of strong 11-gauge hot dip galvanized steel. They have six gussets in the bends for added strength. Slots are 1/2" wide x 5" tall to provide plenty of adjustment to fit the hull.