"The Luverne 6-1/2"" MegaStep Running Boards construction begins with a lightweight aluminum core for weight reduction. The core encased in 18-gauge stainless steel for a clean polished look. The stainless steel trim also provides additional strength. A large 6.5-inch board width allows for sure footing. A highly slip resistant 5-inch wide rubber tread sits just inside the stainless trim, which creates a lip for additional grip. For security and longevity, high strength powder-coated steel brackets are used. These brackets are designed for each specific vehicle application. This allows for a fast easy installation with no drilling required. | Luverne 6-1/2"" MegaStep Running Boards 575098-571725"