<p>We developed our Thermo-Clad™ 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 in Italy 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. Ideal for pressed, rolled and drop cookies as well as pastries, these cookie sheets have a low edge that allows foods to gently slide onto the included rack for cooling.</p> <ul> <li>Designed and developed by Williams Sonoma, and exclusively ours.</li> <li>Thermo-Clad technology ensures efficient, uniform heating with precise temperature control and no hot spots.</li> <li>3-ply construction featuring a heat-sensitive aluminum core between a durable stainless-steel interior and stainless-steel exterior.</li> <li>Aluminum core transfers heat evenly and efficiently for best-in-class baking and roasting results.</li> <li>Side handles offer a steady grip – even when wearing oven mitts.</li> <li>Elevated cooling rack is sized to fit on or under cookie sheet.</li> <li>Dishwasher safe.</li> <li>Limited lifetime warranty.</li> <li>Commercial Grade: Thoughtfully designed and expertly engineered to meet rigorous standards and best practices from select commercial testing.</li> </ul> <h3><b>3-piece set includes:</b></h3> <ul> <li>2 14" x 17" cookie sheets</li> <li>1 cooling rack</li> </ul>