The Roadworks Peterbilt 384/386/387 Battery/Tool Box Top Replacement Step is a practical and durable solution for your truck. Made of stainless steel, this step is designed to fit most Peterbilt 384, 386, and 387 makes and models. With its sturdy construction and easy installation, it provides a convenient and secure way to access your battery or tool box. Whether you're a professional truck driver or a DIY enthusiast, this replacement step is a reliable and functional addition to your vehicle.