Package Included:- 1 x Crucible- 1 x Crucible tong- 1 x Graphite stirring rod- 1 x Borax- 1 x Rectangular graphite crucible- 1 x Cylindrical graphite crucible Features:1. Excellent thermal shock resistance, great electrical conductivity and thermal conductivity2. Good wear resistance, strong lubrication performance and long service life3. High purity, high density, high mechanical strength, strong chemical stability4. Surface can be treated with antioxidant Specifications:▶ Crucible Size: Approx. 60 x 20mm/ 2.36x0.79"- Choice the fused silica as the main raw material, made using modern ceramic processing technology, mainly used in dental alloys, platinum, gold, silver, copper brass and other high temperature melting alloys,high temperature over 2800 degrees, high purity, corrosion resistance, high strength, high heat resistant, high shock resistance.▶ Graphite Stirring Rod: Approx. 6 x 150mm/ 0.24 x 5.91"- Used to stir precious metal, metal scrap while melting. When melting the gold and silver, this stirring rod can help you get a uniform mixing.▶ Borax:- The basic raw materials of boron compounds, almost all of the boron compound can be made by borax.- For percussion welding, metal test, is a good flux. - Widely used in glass, ceramics, fertilizer, textile industry.- Also widely used in metallurgy, iron and steel, machinery, military industry, cutting tools, paper making, electronic tube, chemical textile, etc.▶ Tongs Size: Approx. 240x80mm/ 9.45x3.15"▶ Rectangular Graphite Crucible Size: Approx. 54x38x20mm/ 2.13x1.50x0.79"▶ Cylindrical Graphite Crucible Size: Approx. 40x40mm/ 1.57x1.57"▶ Application: Melt gold, silver, platinum and other precious metal products.