The graphite crucible has good thermal stability, suitable for emergency heat or cold usage conditionGood corrosion and impact Excellent acids and alkalis The graphite crucible has good thermal conductivity properties,it can greatly shorten the melting time and saved energyThe ash of graphite crucible is less than 01%,to that the precious metal in the smelting is not contaminatedIt can melt gold, silver, and other precious metals and other alloys,with long service lifeMaterial: GraphiteWeight: 58gcolor:Silver&blackInner Diameter: 30mmOuter Diameter: 40mmInner Height: 35mmOuter Height: 40mmPackage Contents:1x Graphite Melting Crucible With LidOnly 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.