Feature:1. Excellent Thermal Stability: Fast heating and cooling, strong acid and alkali resistance, corrosion resistance, used for metal smelting such as gold and silver.2. High Performance: Great wear resistance, strong lubricating performance, high purity, high density, high mechanical strength, strong chemical stability.3. Metal Melting: Ensure that metals in smelting are not contaminated, graphite casting crucibles designed for melting gold, silver, copper, brass, aluminum, etc.4. Metal Casting: Fine workmanship, attention to details, important tool for metal casting and refining, light and small, easy to carry, suitable for metal smelting plants.5. Graphite Material: Crucible is made of pure graphite, great thermal shock resistance, electrical conductivity and thermal conductivity, firm and sturdy, durable for use.Specification:Item Type: Graphite CrucibleMaterial: GraphiteExternal Size: Outer Diameter: Approx. 60mm / 2.4in, Height: Approx. 40mm / 1.6inInternal Size: Inner Diameter: Approx. 50mm / 2in, Depth: Approx. 35mm / 1.4in.Package List:1 x Graphite CrucibleNote:Please allow slight error due to manual measurement. Thanks for your understanding.