Sturdy and reliable: casting ingot crucible moulds are mainly made of graphite material, almost no ash content, to ensure that the metal refining process does not affect the purity of the metal; They are durable and sturdy, reliable and reusable, not easy to break or deform, you can use them for a long timeSize: Approx. 85 x 45 x 30 mm/ 3.35 x 1.77 x 1.18 inch in internal size and 100 x 60 x 40 mm/ 3.93 x 2.36 x 1.57 inch in external size, which can hold 2000 g gold or 1060 g silver for casting, meet your demand for quantity, allow you to easily and efficiently purify metal materialsWide range of applications: these graphite ingot molds are widely and commonly applied for experiments and smelting of non-ferrous metals, such as gold, silver, copper, aluminum, 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 suitableNice performance: these metal casting ingot crucible moulds are completed with exquisite craftsmanship and possess general purpose, can meet your daily needs; They are endowed with thermal stability, fast heating and cooling ability, nice corrosion resistance to strong acid and alkali, their thermal conductivity can shorten melting time and save energy, they are able to withstand the temperature of 2000 Celsius without affecting the moldEasy to use: the inner surface of high purity graphite melting mold is smooth, so you can easily pour out the residual metal and reduce waste, try to use it to possess your metal into geometric shape, and achieve your purposes for metal casting, melting or refiningcolour:BlackMaterial:graphitePackage Contents:1 x Graphite Ingot MoldOnly the above package content, other products are not included.Note: Light shooting 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.