The Wingmaster Stainless Steel Peterbilt Tool & Battery Box Covers are a practical and durable solution for protecting your Peterbilt 389's tool and battery boxes. These covers feature a 1-inch lip and are made of high-quality stainless steel, ensuring long-lasting protection for your equipment. Sold by pair, these covers are designed to fit most Peterbilt 389 makes and models, providing a secure and reliable solution for keeping your tools and batteries safe and secure during transport.