... and evenly conductive bottom Interior Coating :Teflon ,Xylan, Ceramic coating ,Greblon, Marble coating,Corflon.Exterior Coating:high temperature ... using on all gas, coal, electric and ceramic cooktopsElegant glass lid with heat insulated handleKeep cool bakelite handle for more ... Cookwarewe hope to cooperate with you for a better future 9pcs die cast aluminium cookware set with cast glass lid