Mauviel"s m"heritage collection is made of two traditional cooking materials: copper and stainless steel, (90-percent copper and 10-percent 18/10 stainless steel) * Copper exterior offers superior control, heats evenly and much faster than other metals; stainless steel interior preserves the taste and nutritional qualities of foods and is easy to clean * Cast stainless steel handles stay cool during use; m"heritage can be used on gas, electric, induction (with a disc), halogen, and in the oven * Made in France and is guaranteed for life against any manufacturing defects