Four tiers of storage in a 31.5 x 14.5 x 58 in metal bookcase help organize books, files, and decor while transparent cabinet doors let you identify contents at a glance. Two inner shelves adjust through 7 positions so you can fine-tune spacing in 1.6-in increments to fit tall binders or smaller items. Each tier supports up to 33 lbs, and an X-shaped frame, anti-tipping kit, and 5-in raised base enhance stability. Four universal wheels, including two lockable, allow easy rolling and steady parking against walls protected by anti-collision pads.