The D5 Cookware Collection is made using a patented 5-ply construction that takes your cooking to the next level. is made with our patented process that bonds 3 layers of stainless steel with 2 layers of aluminum. The additional layers distribute heat more evenly and slowly, eliminating hotspots and making every bite identically delicious. This comprehensive cookware set includes 8-inch & 10-inch fry pans, 2-quart & 4-quart saucepans with lids, 3-quart saute pan with lid, 5.5-quart dutch oven with lid, 8-quart & 12-quart Stockpots with lids. As versatile as it is beautiful, you can use this high-quality stainless steel cookware on gas, electric, or induction ranges or even the oven or broiler. To keep your All-Clad looking brand new, we recommend washing your cookware with soap and a sponge instead of the dishwasher. Bonded, engineered, & assembled in the USA.