Heavy-duty, extra strong injection molded, high density polypropylene bins, the QMS531 is ideal for transportation and storage of large and heavy components. The open hopper front allows immediate access and visibility and these bins are impervious to most solvents, corrosion, rust and rot resistant. Double wall thickness with preformed lip allows bin to interlock and provides up to 150-pound stack capacity. Easy to transport with rear molded handle and easy to identify with molded in label slot. Resists temperatures from -40°F to 250°F. The bin measures 19-3/4" x 18-3/8" x 11-7/8".