The graphite crucibles is designed for efficient metal melting and casting processes. Its robust construction and heat resistance make it ideal for smelting metal like copper, gold, and silver. The smooth interior surface ensures easy pouring and minimal residue, enhancing the overall efficiency of your metalworking tasks. Features -Color:Black -Material:Graphite -Size:4.70X4.70X3.80cm/1.85X1.85X1.49in(outer diameter) -Size:4.10X4.10X3.50cm/1.61X1.61X1.38in(inside diameter) -Durable construction: crafted from graphite, this product boasts durability and resistance to wear, making it suitable for long-term use in demanding environments -Enhanced efficiency: the excellent thermal conductivity of the graphite material ensures rapid and uniform heating, improving overall efficiency in metal melting and refining tasks -Accurate results: the specially designed graphite evaporation dish minimizes sample loss and pollution, providing precise and reliable results for your experiments and processes -Wide compatibility: suitable for melting and refining a variety of nonferrous metal, including silver, copper, and aluminum, offering broad compatibility for different applications - performance: with its hightemperature stability and corrosion resistance, this graphite product ensures performance and reliability in various hightemperature environments Package list: 5 x graphite crucibles