Mud flaps made of heavy-duty rubber; 77 inch wide unit for full-size pickups or large SUVs. The system mounts into a center, easy-lift hitch receiver with heavy metal pin to secure it. Can be removed when you are not towing. Anti-sail design to keep flaps down so that rocks and road spray do not hit the front of your towed vehicle, boat or RV. Sold that truck and RV, replacement truck came equipped with mud flaps.