Using a 42 step, 10 day process, various patinas and processes are used to create the Great Lakes on heavy gauge copper. Adhered to thick wood backing, framed in barn wood and sealed with multiple layers of Crystal Clear Resin. IMPORTANT: these are original and one of a kind pieces so each piece will never be identical to another. Comes complete with heavy-duty hardware attached and is ready to hang on your wall. Surely to be not only an artistic compliment to any room but also a key focal and conversation point for any household or office.