Deluxe Hybrid Kwik Kiln Kit - Gold Melting - Gold Mining Equipment Deluxe Hybrid Metals Melting Kiln is a small and portable combination furnace for both cupelling or melting pure metals. Kiln is 4" OD by 4" tall with melting spacer and chamfered diffuser for cupelling. In addition to Kiln, this Deluxe Kit includes: 4 premium bone ash cupels, 2 mini graphite crucibles, 2 oz gold (1 oz silver) graphite loaf mold, stainless steel mini tongs for cupels, 6 inch scissor tongs (not pictured), 3 ounces of melting flux (Anhydrous Borax, Soda Ash, and Silica Sand), Instructions for both cupelling and melting. The Kiln is 4" tall x 4" in diameter and consists of a 1" base layer and 1.5" kiln chamber - all wrapped in a stainless steel jacket to keep it together. The lid is 1" thick. Propane bottles and nozzles NOT included. Manufacturer's warranty included.