Cooks Standard NC-00367 2-Piece Hard Anodize Premium Grade 8-Inch Nonstick with 10-Inch Fry/Saute Pan Set, Black Hard Anodized surface is harder than stainless steel, it's dense and will NOT chip Premium Grade Nonstick coating deliver exceptional performance, durable and very easy to clean Heavy gauge Aluminum core distribute heat evenly without any "Hot spot" Hard Anodize cookware is oven safe to 450F, Glass lid is not designed for Oven use Hand wash is recommend, clean is so easy, just wipe with towel, no detergent or any chemical needed