OXO Good Grips Tri-Ply Stainless Steel Pro 13 Piece Set Heat-Radiant aluminum core fused between two layers of stainless steel ensures even cooking from every side Clear, tempered glass lids make it easy to check the progress of your dish without lifting the lid Durable, scratch-resistant materials are oven safe up to 430 Degree Fahrenheit and dishwasher safe Works on all stovetops, including induction. Cast iron surfaces should not be cleaned with soap