MAXIMUM TRACTION. Grip Step truck steps have unique expanded metal treads that provide an exceptional level of traction and safety in spite of the weather conditions. They offer a safe, comfortable 7-inch wide stepping surface CLEANER CAB. The unique tread pattern of these truck side steps also helps keep your truck cab cleaner. Dirt and debris are knocked off your boots as you climb up, and the mess is allowed to pass through the open treads TOUGH FINISH. To maximize corrosion resistance, these aluminum step rails have a highly durable black powder coat finish. This ensures professional-grade protection against rain, snow, dirt and other threats SOLID INSTALLATION. These Grip Step truck step bars fit select model years of the Ford F250 Super Duty, F350 Super Duty, F450 Super Duty and F550 Super Duty (NOTE: Components ship separately