Description: High Temperature Resistance: Crafted from graphite, this crucible can withstand temperatures up to 3200F, making it ideal for use in electric furnaces for melting gold, silver, and other precious metalsEnhanced Durability: The surface of the graphite crucible is coated with a special glaze and formed with dense materials to significantly extend its lifespan, ensuring long term reliability and performanceEfficient Thermal Conductivity: With great thermal conductivity, this crucible reduces melting time and conserves energy, making it suitable for both emergency situations and cold conditionsCorrosion and Impact Resistance: Designed to resist from acids and alkalis as well as physical impacts, this crucible maintains its integrity under various challenging conditionsUser Friendly Design: Featuring an groove that allows easy handling with tongs for convenient pouring; however, it is not recommended for use with torch or open flame methods to prevent oxidation cracking Specification: Material:Graphite Size Chart: Inner Diameter 3.6cm/1.42inch, Outer Diameter 6.5cm/2.56inch, Height 12.5cm/4.92inch, Bottom Diameter 5cm/1.97inch Package Includes: 1 Graphite Crucible Note: Please allow slightly errors 1-2cm/0.39-0.79inch differences due to manual measurement.