Will be a convenient combination to meet your DIY needs for melting, casting or refining metal, jewelry, gold, silver and other materials features: these graphite casting moulds possess many features, are characterized by thermal stability, as as fast cooling, their thermal conductivity properties can shorten the casting time and save energyDimension: crucible mould measures . 100 x 50 x 25 mm in outer diameter, 90 x 40 x 20 mm in inner diameter, each crucible stir rod is about 12 inches/ 30 cm long, 5-in-1 graphite casting ingot mould about 72 x 57 x 12 mm in outer diameter, quartz crucible . 7 cm in diameter, 2.5 cm in height, tong about 10 inch in length, cylindrical graphite measures . 4 cm in diameter, 4 cm in heightMultipurpose: these graphite ingot moulds are widely and commonly applied for experiments and smelting of non-ferrous metals, such as gold, silver, copper, aluminum, lead and much more, also perfect for satisfying lab, test analysis and other purposes; Taking the product size into account, small-capacity metal melting projects will be more suitable to use: high-density graphite materials, bring you using experience, and long time to apply, not easy to or deform, you can also share with your or family membersColour:blackMaterial:graphitePackage Contents:1 set * crucibleOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.