18/10 stainless steel, a very healthy material that preserves the flavor of food. It distributes heat evenly over the entire product (not just the bottom) thanks to the inner aluminum layer. Not afraid of high temperatures, ideal for searing food. A 0.4mm layer of 304 stainless steel (18/10 stainless steel), a 1.2mm layer of aluminum, a 0.6mm layer of 430 stainless steel. The TRIPLY range is compatible with all heat sources, including induction. Sturdy handle attachments thanks to stainless steel rivets. Can be used with metal utensils. Riveted stainless steel handle stays cool. Made in France. Dishwasher safe.