Main Purpose: This casting container is specifically designed for jewelry processing. It is ideal for DIY metal jewelry making, offering convenience and practicality. Aluminum Alloy: The jewelry casting model is made of aluminum alloy, which is sturdy, wear resistant, and has great heat dissipation properties. Easy to use: with its fine craftsmanship, this model can withstand high temperatures safe, giving you peace of mind during use. Cylindrical Design: The cylindrical design of the jewelry casting model makes it easy to use and greatly improves processing efficiency. Wide Application: This product is suitable for various metal industries such as jewelry stores, hardware stores, and jewelers who do repairs - demonstrating its strong practicality. Size Chart: External size: 7.2cmx7.2cmx6.7cm/2.83inchx2.83inchx2.64inch Internal Size: 6.4cmx6.4cmx6.7cm/2.52inchx2.52inchx2.64inch Round Hole Diameter: 2.4cm/0.94inch Package Includes: 1Sand Casting Sandbox Note: Please allow slightly errors 1-2cm differences due to manual measurement.