Features 1、QUALITY ALUMINUM ALLOY: Crafted from premium aluminum alloy, this jewelry casting sandbox is robust, long lasting, and resistant to deformation. Suitable for jewelry stores, hardware stores, and other metal industries. 2、DIMENSIONAL DETAILS: Outer sizes approximately 72 x 67mm; inner sizes approximately 64 x 67mm; hole diameter approximately 24mm/0.94 inches. Designed specifically for jewelry making processes. 3、HIGH TEMPERATURE RESISTANCE: Made with aluminum alloy, this jewelry casting sandbox is wear resistant, has excellent heat dissipation, and is safe to use at high temperatures. The well crafted design can withstand high temperatures. 4、WIDE APPLICATION: Ideal for jewelry processing and DIY metal accessories, this jewelry casting container is practical and convenient. Suitable for jewelry stores, hardware stores, jewelry repair shops, and other metal industries. 5、EFFICIENT DESIGN: The rational shape and size of this metal melting furnace make it efficient and practical for various metal casting processes, ensuring precise and quality results. Specification Item Type: Aluminum Alloy Sand Casting Box Material: Aluminum alloy, red sand, boronite, lubricating powder External Size: Approx. 72 x 67mm / 2.8 x 2.6in Internal Size: Approx. 64 x 67mm / 2.5 x 2.6in Round Hole Diameter: Approx. 24mm / 0.9in Package List 1 x Sand Casting Box 1 x Bag of Red Sand (500 g / 17.6 oz) 1 x Bag of Lubricating Powder (100 g / 3.5 oz) 1 x Bag of Boronite (100 g / 3.5 oz)