These extra large stacking containers offer a generous 2-3 feet in length to store your larger items. Optional clear plastic window increases bin capacity and provides a quick view of the bin contents. Optional dividers maximize flexibility and keep contents organized. Waterproof bins resist rust and corrosion. Bins are autoclavable up to 250ºF and are resistant to extreme cold. Heavy duty, 20 gauge shelving is engineered for superior strength and are triple bent on all four sides, allowing 400 lb load capacity per shelf. Easy quick assembly.