Quantum Storage Systems WR63-2448C Starter Kit for 63" High 4-Tier Wire Shelving Unit, Chrome Finish, 800 lb. Per Shelf Capacity, 24" Width x 48" Length x 63" Height Starter kit includes four wire shelves, four posts, and split sleeves for the assembly of one modular four-tier wire shelving unit Made of chrome-finished carbon steel for strength, durability, and to resist dirt buildup and corrosion; Wire allows air to circulate and light to penetrate for increased product visibility Shelves adjust in 1" increments, and have a welded construction reinforced with wire trusses and struts for strength Posts come with adjustable levelers to facilitate use on uneven surfaces 800 lb. per shelf capacity, evenly distributed