The Booked 79" Bookcase Combo D combines two Booked 79" Bookcases with one set of five 32" wide shelves. This modern wall unit features a total of 17 adjustable shelves made from MDF with a rich brown laminate finish. The frame is silver powder-coated steel with ladder-style sides that allow the shelves to be easily moved at approx. 5" intervals. X-shaped support braces add stability and it comes with wall mounting brackets.