Made of 3/8" thick ultra durable rubber with a nylon cord reinforcement. The one piece design offers an attractive look as well as durable protection from road debris. The material can be cut or notched to accommodate hitches, exhaust pipes, wiring etc.. It attaches to the hitch insert of most 2" receiver hitches and slides on and off for easy removal when not towing. A 1"L x 1"W x 70"W Steel Angled Mounting Bar is necessary (sold separately).