Elite chefs depend on All-Clad's Copper Core cookware because of its superb responsiveness to heat, essential for making reductions and sauces. This set is a superb choice for experienced cooks, with pots and pans for everyday cooking as well as specialized pieces for more elaborate recipes.Five-ply construction of securely bonded metals: a thick, extremely heat-responsive copper core sandwiched between two layers of highly conductive aluminum with an easy-clean stainless-steel exterior and interior that won't react with foods.Allows for the quickest heat-up time, maximum temperature control and rapid, even heat distribution.A ring of copper adds a finishing touch to the gleaming exterior.Riveted stainless-steel handles stay cool on the cooktop.Ideal for use on any type of cooktop, including induction.A Williams-Sonoma exclusive.15-Piece Set includes:10" and 12" fry pans.2-qt. and 4-qt. saucepans with lids.3-qt. and 6-qt. saute pans with lids.5 1/2-qt. Dutch oven with lid.7-qt. tall stockpot with lid and pasta insert.Please note: lids and insert are counted as individual pieces.