This product has a prime cold-rolled steel outer shell with 3 adjustable horizontal and 3 adjustable vertical dividers. It has a positive pull-down catch that keeps the cover tightly closed to prevent part migration. It has a durable plastic insert and racks, pouches and cover labels are available as accessories. Overall Dimensions (In.) LxWxH: 18.3125 x 12.4375 x 3.0625 For industrial storage items, a signature will be required to accept the delivery. If the item is not acceptable condition, sign for it as damaged or refuse the shipment. Please visit our Shipping Policy for further information.