All-Ply 13pc Cookware Set 18/10 stainless-steel interior for hygienic use and easy cleanup. All-Ply  copper core allows for the quickest heat-up time, maximum temperature control and rapid, even heat distribution. Stay-cool hollow handles for balance, control and minimized heat transfer. Oven Safe to 600F and NSF, UL and CE approved. Ideal for use on any cooktop (Electric, Gas, Ceramic, Induction & Hi-Light) & Lifetime Warranty