USA Pan Five-Ply Clad Stainless Steel 7 Inch Chef's Skillet Durable five-ply clad stainless steel with aluminum core Provides even heat distribution and efficient browning, eliminating hot spots for a perfect baked dish time after time Corrugation ridges maximize strength and prevents warping, denting, and other effects of everyday use FDA approved, it does not contain PTFE's or PFOA's Induction ready