All-clad Bd5509 Ns D5 Brushed Non-stick Stainless Steel 5-ply Bonded Dishwasher Safe 9-inch French Skille Shipped in non-retail carton with warranty Compatible with all cooktops, optimal for induction.18/10 stainless steel cooking surface will not react with food Dishwasher, oven and broiler safe to 500 degrees Stainless steel handles are permanently secured with stainless steel rivets. Pan sizes are etched on base for quick identification. Non-stick coating offers professional performance and durability in rigorous testing. Pan sizes are etched on base for quick identification.