Flexible book and supply storage can be yours with the Heavy Duty Radius Mobile Bookcase. The 90-degree rounded corners and rounded edges create a more modern style and soften the hardy appearance of this bookcase"s steel construction. Shelving ranges from two to five shelves, depending on the bookcase size you choose. Each case has one fixed shelf, and the rest adjust at 2-inch increments. This all-welded, heavy-gauge steel bookcase is equipped with 5-inch casters to allow for easy mobility. Two of the casters lock for stability. With four size options and 10 electro-static powder-coated finishes to choose from, you can have fun mixing and matching to create an upbeat atmosphere in your bedroom, study, or den. About Atlantic Metal IndustriesThis bookcase is produced by Atlantic Metal Industries, Inc., a manufacturer of metal furniture since 1948. During this period of time the company has continued to combine meticulous workmanship with top-quality materials. It begins with heavy-gauge furniture steel, then precisely forms and fits components to original designs - designs that have redefined the industry. The wide selection of metal bookcases, cabinets, and storage units is engineered to last for years to come. Please note this product does not ship to Pennsylvania. * Heavy-gauge steel * 2-5 shelves, depending on size * Adjustable shelves * 5-inch casters for easy mobility, 2 locking * Several electro-static, powder-coated finish options * 4 height options * All bookcases measure 36W x 18D inches