ORE International R597-4 Four Tier Metal Book Rack
This contemporary style bookshelf helps you organize all of your belongings with ample shelf space on four tiered shelves. Made of black painted metal, the bars along the sides and back give added strength to this versatile unit. The shelves are 11 inches deep and are placed about one foot apart.  This shelf unit is strong, yet light enough to easily move from room to room.