What is this?The gold casting machine can be applied for experiments and smelting of non-ferrous metals, such as gold, silver, copper, and aluminum.What will I get?Dimensions: 24x22x12mm/0.94x0.87x0.47-inch (L*W*H)Inner Tank Size: 18x16x7mm/0.71x0.63x0.28-inch (L*W*H)Inner Groove Shape: Rounded CuboidColor: Grey BlackMaterial: GraphiteIn the package of: 1Pcs x Graphite Mould for Casting MetalAre there any advantages of the product?This copper ingot is made of high-purity graphite. The graphite crucible ingot Mould has good wear resistance, good lubricity, long anti-oxidation life, high purity and high density, high-temperature resistance, corrosion resistance, heat resistance, shock resistance, and excellent electrical conductivity.