Size information: the outside dimension is 100 x 50 x 25 mm and the inner is 90 x 40 x 20 mm, the capacity is about 1 kg gold or 500 g silver, general size can meet your most melting or casting needs for metalsDurable material: the main material is graphite, hardly ash content ensures that the metal purity will not be affected during the metal refining process; Fast cold and hot conditions, with good thermal stability, exquisite refining effectNice performance: our casting ingot crucible mold has nice thermal conductivity, which can highly shorten the melting time and save energy, and withstand 2000 degrees Celsius, nice acid and alkali resistance, nice corrosion resistance, impact resistance, 89 MPA compression resistance, and 48.7 MPa flex resistance, nice impact resistance performance to the reliability of product qualityWide uses: this ingot mould is suitable for experiments and melting of non-ferrous metals, such as gold, silver, brass, copper, aluminum zinc, lead and so on, also can be applied as graphite crucible melting into non-ferrous metals, test analysis, as the ingot mold and other purposes; Taking the size of the product into account, small-capacity metal melting are more suitablePackage contents: you will get 2 piece of graphite ingot mold with exquisite craftsmanship and versatile usages, which can meet your daily needs; You can also invite your friends or family to enjoy handmade Material:graphitecolour:BlackPackage Contents:2 x Graphite Ingot MoldOnly the above package content, other products are not inclu.Note: Light reflection 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.