What is this?This is a graphite ingot crucible mould, resists high temperatures and corrosion for melting, casting, and refining non-ferrous metals, including gold, silver, copper, brass, aluminum, and metalworking experiments,.What will I get?Material: GraphiteOuter Size: 120x25x17mm/ 4.7 inches x 0.98 inches x 0.7 inches (DxH)Inner Size: 100 x 10 x 10mm/ 3.9 inches x 0.4 inches x 0.4 inches (DxH)The product includes: 1pcs x Graphite Ingot MouldAre there any advantages of the product?High-purity graphite makes this crucible mould excellent for thermal conductivity, reducing melting time, nd withstanding temperatures up to 1600 degrees Celsius.