The Aluminum Tool Box 18 By 18 By 36 Diamond Plated Left Hand Door is a durable and practical storage solution for your truck or workshop. Made of diamond plate aluminum, it is available in smooth or diamond plated aluminum finishes. The door assembly comes with a lock and hinge, and the continual-seam weldments virtually eliminate moisture trapping, cracking, and fatigue. This tool box fits most 18 inch x 18 inch x 36 inch underbody box makes and models, making it a versatile and reliable option for storing your tools and equipment.