Will be a convenient combination to meet your DIY needs for melting, casting or refining metal, jewelry, gold, silver and other materials Nice features: these graphite casting moulds possess many nice features, are characterized by good thermal stability, as well as fast cooling; their excellent thermal conductivity properties can shorten the casting time and save energy Dimension: crucible mould measures approx. 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 approx. 72 x 57 x 12 mm in outer dimensions; quartz crucible approx. 7 cm in diameter, 2.5 cm in height; tong about 10 inch in length; cylindrical graphite measures approx. 4 cm in diameter, 4 cm in height Multipurpose: these graphite ingot moulds are widely used for experiments and smelting of non-ferrous metals such as gold, silver, copper, aluminum, lead and more; ideal for laboratory, testing, analysis and other applications; considering the product size, small-capacity metal melting projects are most suitable Reliable to use: made from high-density graphite material for a durable and stable performance; resistant to cracking and deformation; provides a long service life Color: black Material: graphite Package Contents: 1 set * crucible Only the above package content, other products are not included Note: Light and display settings may cause slight color variation between the image and the actual item. Measurement allowance is +/- 1-3 cm