Art Clay™ Copper is a clay material that you can use to make a wide range of pieces such as jewelry, craft designs, and larger objects like sculptures and models. Art Clay™ Copper can be fired in an electric kiln without using any type of cumbersome or restrictive media, with the resulting fired piece being 100% pure copper. Art Clay Copper only requires a 30 minute kiln firing time and does not require activated carbon or a firing pan. Art Clay Copper can be fired with a hand-held torch. This clay shrinks a little under 10% during the firing process and requires a warm pickling solution (see related products below) after firing to remove residual fire scale. This item can only be shipped to destinations within the U.S.A. and Canada.