Gold Tool Ingot Mold Casting No. 7 Per Kg. Its made of heavy duty cast iron. Rectangular mold shape is great for repurposing old metal, preparing it for sale or making wire. Hold liquid - molten metals fit easily in and cool into the rectangular shape. Good for all precious metals - will hold very hot and molten metals with ease - use with care. Use with gold, silver, stainless steel, metals, aluminium and more!. Dimension in mm : 210x110x75, Approx Weight in : 7.332 Kg.