Designed for gas, electric, induction, or ceramic cooktops; also oven and dishwasher safe. 18-8 stainless steel construction with a permanently bonded 1/4 inch thick bottom layer made of aluminum and stainless steel for efficient heat distribution, durability, and induction style cooking. Rounded edges and combination mirror/satin finish for easy cleanup and strength. Stock pots, sauce pots, and covers have solid loop handles attached to reinforcing plates. Sauce, saute, and fry pans feature hollow handles that are sealed to keep foreign material out and designed for stay cool comfort. Fry pans are available with natural or non-stick finish. NSF. Warranty: Limited Lifetime (does not apply to non-stick fry pans).