The special design of this mud flap holder keeps a mud flap straight so it doesnt sail. This helps prevent mud and dirt from being thrown onto your truck or other vehicles on the road. Ideal for semi trucks on long hauls. This bracket has a shiny protective layer of chromium to help prevent corrosion and improve durability. Plus it looks nice on your semi. Easy to hang and ready to help support your truck mud flaps in protecting the undercarriage from dirt and grime. 21 inches long. 25 inches wide. Single bracket.