Cookware features tri-ply construction with a heavy-gauge aluminum core sandwiched around an 18/10 interior stainless steel cooking surface, which is sanded seven times for a smooth surface. Plus, the 18/10 stainless steel exterior provides fast and even heating. Cookware also has double-riveted, cast stainless steel handles that are permanently attached for a safe, secure hold with solid stainless steel rivets. Oven safe to 500(DEG). For use on all cooking surfaces including induction. Dishwasher safe. 25-year warranty.