A durable and mobile shelf is a research essential. When you need to move books and supplies from classroom to classroom, an Atlantic Metal Industries steel bookcase with casters gets your items there quickly and easily. Atlantic Metal Industries mobile steel bookcase with 4 shelves glides smoothly on four 5in. casters (2 locking) for easy positioning. Atlantic Metal Industries bookcase shelves adjust in 2in. increments and hold up to 200 lb each. Ships fully assembled. Backed by the manufacturer's 2-year limited warranty. Atlantic Metal Metal Bookcases part of a large selection of office furniture and business equipment, whether for a home office or traditional office. Atlantic Metal Industries Mobile Steel Bookcase, 3 Shelves, 48in.H x 36in.W x 18in.D, Putty is one of many available through Office Depot. Made by Atlantic Metal.