"The Rock Tamers Mud Flap System lets you protect your boat, ATV, snowmobile, and other towed cargo without having to mount flaps permanently on your vehicle. These removable mud flaps secure easily to a ball mount and remove just as easily when you're not towing. The support rods are made of heavy-gauge, corrosion-resistant, anodized aluminum with stainless steel mounting hardware. The system adjusts in width and pivoting arms give you the ability to change the height for maximum coverage on different vehicle heights or under variable towing loads. The powder-coated center hub requires a minimum of 1"" clearance. The 3/8""-thick rubber flaps are 24""H x 24""W x .375""D and molded to a layer of tear-resistant fabric with stainless steel trim plates. The backs have an anti-splash pattern and can be cut to any length by using the pre-molded cut lines. No drilling required. The Rock Tamers Mud Flap System keeps your precious cargo protected from road debris and provides a finished, professional look to your towing vehicle. Manufacturer's 1-year limited warranty. Protects your towed cargo from rocks and debris Secures to standard 2"" ball mount (not included) Heavy-gauge, anodized aluminum support rods Adjustable width, with pivoting arms to change height Powder-coated center hub Anti-splash back pattern"