2 Sizes: The outer size of the 1 kg graphite ingot mold is 100 x 50 x 25 mm / 3.94 x 1.97 x 0.98 inches, with an inner size of 90 x 40 x 20 mm / 3.54 x 1.57 x 0.79 inches. The outer size of the 665 g graphite ingot mold is 100 x 30 x 30 mm / 3.94 x 1.18 x 1.18 inches, with an inner size of 90 x 18 x 22 mm / 3.54 x 0.71 x 0.87 inches. Please check the dimensions before purchasing. Durable Construction: Made of high-quality graphite, these molds offer excellent thermal conductivity, helping reduce melting time and improve efficiency. Resistant to high temperatures up to 2000°C, corrosion, and compression, they are durable, flexible, and less prone to cracking or deformation for long-term use. Package Contents: 2 x Graphite Ingot Molds (1 kg size and 665 g size). Suitable for various metal melting and casting applications, ideal for crafting and small-scale metalworking projects. Wide Application: Compatible with melting and casting metals such as gold, silver, aluminum, copper, and other common metal materials. Can also be used as a graphite crucible in laboratory or experimental settings. Color: Black. Material: Graphite. Note: The package includes only the items listed above. Other accessories or tools shown are not included. Due to lighting and display differences, the actual color may vary slightly from the image. Measurement error allowance is +/- 1-3 cm.