For cost effective storage, transport. * Fits 48"x40" palletes (six 1721's & 1722's per level; four 1731's & 1732's per level) * USDA tested materials that comply with FDA regulations for use in meat and poultry plants. * Lids snap tight and secure with optional nylon ties. * Nestable and stackable with or without lids. * High-density polyethylene with high stress crack resistance. * 180° stacking feature for extra stability. * Recommended operating temperature: -10° F to 130° F. * Slip-resistant textured bottoms.