We developed our Thermo-Clad™ cookware and bakeware drawing on over five decades of culinary experience, designing every element to provide years of great results in your kitchen. Available only at Williams Sonoma, Thermo-Clad™ is crafted to our precise specifications using an exclusive aluminum alloy that provides up to 35% better thermal conductivity than other aluminum-clad metal bakeware on the market. This 14-piece set to includes all the pieces you'll use most often for everyday cooking and culinary creativity, as well as baking and entertaining. Designed and developed by Williams Sonoma, and exclusively ours. Thermo-Clad™ technology ensures efficient, uniform heating with precise temperature control and no hot spots. Cookware pieces combine a polished magnetic stainless-steel exterior with an exclusive aluminum-alloy core. Exclusive double-wall insulated lids keep food warm at 150°F for 90 minutes. Cookware is ideal for all types of cooktops, including induction. Bakeware features a heat-sensitive aluminum core between a durable 18/10 stainless-steel interior and stainless-steel exterior. Aluminum core transfers heat evenly and efficiently for best-in-class baking results. Dishwasher safe. Limited lifetime warranty. 14-Piece Set includes: 10" and 12" fry pans 2-qt. and 4-qt. saucepans with lids 4 1/2-qt. sauté pan with lid 8-qt. stockpot with lid 14" x 17" cookie sheet Half-sheet pan 8"-sq. baking pan 13" x 16" cooling rack Please note: Lids are counted as individual pieces.