Copper, Exclusive tri-ply copper sauté pan with lid. The first layer is the copper exterior, and the interior consists of a layer of aluminium and a layer of stainless steel, which make it easy to clean. The copper and aluminium layers conduct heat well, allowing the pan to heat up quickly and evenly. The base has been reinforced with a thicker stainless steel plate which allows for use on an induction hob. The pan has a stainless steel handle that stays cool during cooking. Suitable for all types of hobs.