Compatible With: Semi Truck (Freightliner, Kenworth, Peterbilt, International, Mack, Volvo). 1, Designed with heavy-duty rubber that remains soft and flexible, ensuring optimal performance even in extreme temperatures. 2, Features textured black rubber for a durable, easy-to-clean finish, with a molded pattern for a premium appearance. 5, Effectively prevents mud and small rocks from being thrown against the vehicle's body or at trailing vehicles, enhancing overall protection and safety.