The 12 Inch Long By 84 Inch Cab Rack Chain Tray Lid is made of durable aluminum, ensuring long-lasting performance. It features continual-seam weldments that effectively prevent moisture trapping, cracking, and fatigue. This lid is designed to fit perfectly on a 12 Inch x 84 Inch chain tray, providing a secure and practical solution for your storage needs. With its high-quality construction and reliable functionality, this aluminum lid is a must-have for any truck owner.