Constructed of thick diamond plate aluminum. Reinforced dome style lid with high quality foam weather stripping. Full length piano style hinge and adjustable lid strickers. Twin, 45 pound struts provide smooth, authentic lid lifting even in cold weather. Deep molded tool tray provides storage for small items and sits above the ledge , allowing for maximum storage inside the box. Quick release, stainless paddle handles with foam gasket to prevent moisture from entering box.