Ceramic Marble Coated Cast Aluminium 2.5 qt. Stockpot Non Stick Cookware (20 cm diameter) Ceramic Marble Coated Stockpot, 3 qt. (20 cm/ 8" diameter) Premium Quality Cast Aluminium with 4 layers of Non-Stick Marble Coating Marble Coating both inside and outside, 10x stronger than teflon coating Tempered Glass Lid Made in Korea ...the leader in termolon non stick ceramic materials