Feature: 1. Graphite Material: Graphite mold uses high grade graphite material, and the ingot mold will not affect the metal purity during the metal refining process. 2. Thermal Stability: Graphite crucible mold has fast hot and cold conditions and good thermal stability, creating exquisite refining effects for you. 3. Heat Resistant: Gold silver graphite ingot mold for casting metals can withstand 2000 degrees Celsius, reducing melting time and saving energy. 4. High Performance: The metal melting mould has good impact resistance and acid and alkali corrosion resistance, excellent performance and reliability. 5. Application: The ingot mold has a wide range of applications. It is suitable for the experiment and smelting of non ferrous metals such as gold, silver, brass, copper, aluminum, and zinc. It can also be used to make test analysis tools and ingot molds for bars or necklace pendants. Specification: Item Type: Graphite Mold Material: Graphite Size: External Size: Approx. 70 x 57 x 20mm/2.8 x 2.2 x 0.8in Internal Size: Approx. 50 x 37 x 10mm/2.0 x 1.5 x 0.4in Introduction: Graphite Products Are More Than 2 Times More Durable Than Ordinary Material Products, Have a Longer Service Life, and Can Withstand High Temperatures Above 2000 ℃! the Capacity is 15ml, the Gold Capacity is 300g/10.6oz, and the Silver Capacity is 157g/5.5oz. Package List: 1 x Graphite Ingot Mold Note: Please allow 2‑3cm/0.8‑1.2in error for manual measurement