Our Metal Clay firing pans can be used for Copper and Bronze Clay. Choose from our standard stackable pan (7" wide x 6-1/2" deep x 2-1/2" high) or our tall pan (7" x 6-1/2 deep x 4" high). Choose from Coal or Coconut Carbon (1lb). Includes slotted lid. Stainless steel firing pans are very durable and will last longer than most any other firing container. After several firings, the stainless steel will turn black and flake. Simply vacuum or sweep the bottom of your kiln out every few months to keep everything nice and clean.