All-Clad Gourmet Ovenware is designed to the same exacting standards that give All-Clad cookware its legendary performance and heirloom durability. The bonded tri-ply 18/10 stainless steel construction with an aluminum core delivers supremely even heat distribution and will maintain its precise shape throughout a lifetime of service. Brushed stainless steel exterior. Dishwasher safe. Handcrafted in the USA. Lifetime warranty.