The PEAK Transport Heavy Duty Wiper Blade from Old World Industries is designed for Classes 6-8 trucks, transit and school buses. Featuring an all-metal blade and a heavy-duty natural rubber wiping element, the wiper blades are well suited for performance and increased visbibility. The heavy-duty line comes in seven different styles, with each including all the hardware for easy installation. The wiper blades are also available in 10-40" lengths and can work with several vehicle years, makes, and models.