The Peterbilt 379, 388, 389, and 579 Rounded Batterby Box with Wing Type Step is a practical and versatile product. Made from stainless steel, it offers durability and a sleek appearance. The wing type step adds convenience and accessibility. This product is designed to fit most Peterbilt 379, 388, 389, and 579 models, making it a reliable choice for truck owners. With its functional features and high-quality construction, this batterby box is a valuable addition to any truck.