Features: - Graphite crucible has good thermal conductivity, which can greatly shorten melting time and save energy - Graphite crucibles have good thermal stability, suitable for emergency or cold start conditions - Offers excellent corrosion resistance, impact resistance, acid resistance, and alkali resistance - Capable of melting gold, silver, platinum, and other precious metals and alloys; long service life - Maintains the original natural graphite's various physical and chemical properties Specification: Material: Graphite Color: As shown in pictures Options: 1kg, 2kg, 3kg | Option | Top Diameter (mm) | Inner Diameter (mm) | Bottom Diameter (mm) | Inner Height (mm) | Outer Height (mm) | |--------|-------------------|----------------------|-----------------------|--------------------|--------------------| | 1kg | 65 | 36 | 50 | 115 | 125 | | 2kg | 72 | 44 | 55 | 140 | 155 | | 3kg | 75 | 50 | 60 | 150 | 170 | Weight: 330 - 465g Type: Jewelry Tools Package List: 1 x Graphite Crucible