PN#251720  SKU#21866  Select Ford Super Duty 2 Flaps. Mud Guards – 12″ x 20″. 3/8″ thick, heavy-duty rubber flaps protect with the right amount of flex. High-polish, 18-gauge stainless steel plates resist corrosion and add style. Heavy-duty design extends body life by deflecting rocks and other debris. Textured rubber surface hides scuffs and scratches to maintain a clean finish. Easy to install with included corrosion-resistant mounting hardware. High-strength steel brackets feature a galvanized finish.