About time your walls got hitched. Powder coated steel uprights and wood shelves in multiple finish options make you the master of your own book case destiny. Single units stand alone. Gang up multiples to create mass appeal with the Hitch Add-on Bookcase. Shelves are wood veneer (smoke on ash or walnut) over engineered substrate or lacquered engineered substrate (white or black) Powder-coated steel uprights Assembly required. “Other colors available in variety of options. Please see brand representative for details.”