The Prime Collection Graham II Wall Art features geometrical lines engraved on four wooden panels. This set has been stained with a black finish and is intended for indoor use. Measuring 20-inches square, these panels can be hung either vertically or horizontally and are designed to give you the flexibility to arrange them in a customized pattern on your wall. The beautiful design is clean and sturdy -- sure to be a wonderful addition to your transitional style home or office Decor.