We teamed up with the nonstick cookware innovators at Napa Valley-based Hestan to create our signature Thermo-Clad™ Nonstick collection. Designed in-house and made to our exacting specifications, these top-tier nonstick pans are built for maximum heat efficiency and durability. Tri-ply layering incorporates a premium nonstick finish, a hard-anodized aluminum body and a stainless-steel induction-compatible base. This set includes a fry pan and a deep, covered essential pan that's ideal for one-dish meals. Thermo-Clad technology ensures efficient, uniform heating with no hot spots. Dent-resistant, hard-anodized aluminum body offers quick heat-up and cool-down. Durable PFOA-free nonstick coating inside and out for easy release and quick cleanup. Designed for use with metal utensils; dishwasher and oven safe. Patented tri-ply stainless-steel induction-compatible base is fully encapsulated and will never corrode. Induction-compatible base provides even heat distribution. Stay-cool stainless-steel handle is ergonomically designed for comfort and control. Essential pan has helper handle to ease lifting and transfer plus double-wall insulated stainless-steel lid. Ideal for all types of cooktops, including induction. Designed by Williams Sonoma; manufactured by Hestan. 3-piece set includes: 10 1/2" fry pan 4 1/2-qt. essential pan with lid