Feature: 1. [Efficient And Prevent Corrosion] Graphite ingot mold has premium thermal stability, can be heated and cooled quickly, resistant to strong acid and alkali corrosion. 2. [High Performance] Graphite ingot mold for gold and silver and other precious metals melting, premium thermal shock resistance, electrical conductivity as well as thermal conductivity. 3. [Stable And Durable] Rectangular graphite ingot mold is wear resistant, with strong lubricating properties, long service life, high purity and density, high mechanical strength, and chemical stability. 4. [Application] Made of pure graphite to ensure that precious metals in smelting are not contaminated, graphite casting crucible designed for melting gold, silver, copper, brass, aluminum, etc. 5. [Multifunctional] Graphite crucible mold can be used for melting metals, also can be used to make bars, or necklace pendant ornaments for testing and analysis tools. Specification: Item Type: Graphite Ingot Mold Material: Graphite Outer Size: Approx. 125 x 60 x 40mm / 4.92 x 2.36 x 1.57in Internal Size: Approx. 105 x 40 x 30mm / 4.13 x 1.57 x 1.18in Gold Refining Capacity: Approx. 2100g/4.6lb. Package List: 1 x Graphite Ingot Mold Note: Manual measurement, please allow some errors.