Torch Melting Gold Silver Kit Tongs Ceramic Crucible Set Stir Rod Scrap 16A Works with gold, brass, silver, copper, aluminum, and more Includes a 100 gram ceramic crucible, and a 200 gram size; plus a 5/16" in diameter x 16" long graphite stir rod Ceramic crucibles can withstand temperatures up to 2500F (1371C) and firmly and securely fit inside of the included small whip tongs