Original art is printed directly onto thin sheets of real wood of different species, and we love the different looks of the varied grain. The wood is approximately 1/2 mm thick so the work is somewhat fragile. To protect it, but above all to enhance it, we suggest framing it. The wood veneer is made to fit into a 5x7 master key opening. The wood is therefore slightly larger (approximately 5.25x7.25") to allow it to be fixed inside. The woods used here include maple, cherry and walnut.