ECONOMICAL STURDY AND STRONG WITH THE VALUEMATE® BOOKCASES YOU CAN'T GO WRONG THE SHELF AND EXTERIOR OF THE BOOKCASE ARE CONSTRUCTED OF STEEL AND THE BACK IS MADE OF SOLID FIBERBOARD. ATTRACTIVE PLASTIC SNAP-IN RADIUS CORNERS MAKE ASSEMBLY EASY AND ADD TO THE OVERALL STRENGTH OF THESE UNITS. GENEROUS 12"" DEEP SHELVES ACCOMMODATE 3-RING BINDERS AND LARGE PUBLICATIONS. INCLUDES THREE SHELVES. BLACK FINISH.