All-Clad Tri-Ply Stainless Steel 7 Piece Cookware Set Premium tri-ply construction throughout the pan delivers even heat distribution - without hot spots 18/10 stainless steel cooking surface will not react with food Superior stick resistance as a result of starburst finishing on the pan's stainless steel interior Compatible with all cooktops, including induction Stainless steel handles are permanently secured with stainless steel rivets