Keep your inventory and storage organized thanks to the Alera Wire Shelving Starter Kit with 4 Shelves - 48W x 18D x 72H in.. This shelving kit allows you to assemble it as a four-shelf unit or two 2-tier units. Durable steel constructs the frame, outfitted with dense wire shelves. A black anthracite finish tops the metal, ensuring protection against scratches and rust. The shelves can each support up to 1,000 pounds.