KitchenAid KC2PS10CP 10 Piece Tri-Ply Copper Set, Satin Copper, Medium The polished pure copper exterior provides efficient, even heating Our 3-ply design gives you precise even heating. Revolutionary induction technology on a copper exterior body. Etched Measurement markings make it easy to measure quantities for Soup and sauce recipes. Riveted stainless steel handles) Oven safe up to 500 degrees