Traex boxes have reinforced ribs on top and bottom add strength for extended life Signature boxes have smooth interior bottom and ribbed exterior bottom Stacking lugs prevent sticking together and allow for quicker drying Reinforced handles Made of high-density polyethylene Approved for temperatures up to 180 degree F (82 degree C) and as low as -30 degree F (-34 degree C) Signature boxes have a hole in handle for easy drainage and a smooth interior bottom for easy clean up Items 1527B-XX and 1521B-XX are bulk items and case lots will not be broken Items 1527-XX and 1527B-XX are not available in beige (32) Bus Boxes, except for 52629, are NSF Certified for food contact Where applicable, add two digit suffix (XX) after dash (-) to indicate color. (01 - brown, 05 - white, 06 - black, 31 - gray) Color shown in image may differ from options available for specific item