Features:It is a graphite ingot mold for melting furnace.Fits for the casting of most metal， such as gold ，silver and copper.High purity.Specifications:Bulk density ≥1.82 g/cm3;Ash ≤0.1%;Size: (1 troy ounce =31.1035g)9ml:Outer size:55x37x20mm Inner size: 45x24x10mm; 150g gold/80g silver;Package Content:1xGraphite Casting Melting Ingot.