The Peterbilt 379, 388, and 389 48 Inch Rounded Battery Box is a durable and practical solution for storing batteries on your truck. Made of stainless steel and equipped with locks, this battery box is designed to fit most Peterbilt 379, 388, and 389 models. Its rounded shape adds a sleek and polished look to your truck while providing secure storage for your batteries. Whether you're a truck owner or a fleet manager, this battery box is a reliable and convenient accessory for your Peterbilt truck.