Galvanized steel anti-sail brackets that hold mud flaps and splash guards rigid and stable at highway speed. Measuring 26-3/4 in. wide by 21 in. tall, they fit 24 in. wide flaps on dump trucks, flatbed trucks and enclosed box vans. Reduces sail effect so flaps and splash guards stay rigid at highway speed Galvanized Steel construction with a galvanized finish, offering rust and corrosion resistance for year-round use One-piece bolt-on design; the flap slides into the track then bolts on Mounting hardware not included Fits 24 in. wide flaps; suited to dump trucks, flatbed trucks and enclosed box vans Sold in pairs and must be purchased in quantities of 5 pairs (5 pairs per case) Specifications Width: 26-3/4 in. Height: 21 in. Material: Galvanized Steel Finish: Galvanized Cross Section Diameter: 5/16 in. Mounting Hole Diameter: 3/8 in. For Use With: 24 in. wide flaps