The ValueMate Economy Bookcase is a workspace organizer with steel-constructed shelves and exterior. With a fiberboard backing, the bookshelf offers 12 deep bookshelves that can adjust in 1 increments during assembly. Plastic, snap-in radius corners provide speedy assembly. Fixed bottom and top shelves. Five Shelves—Contains additional fixed shelf. Color(s): Gray; Color Family: Gray; Material(s): Fiberboard; Steel; Number of Shelves: 5.