Viking Contemporary 3-Ply Mirror Cookware combines a layer of aluminum sandwiched between heavy-gauge stainless steel for superior performance. The aluminum core provides exceptional heat transfer throughout the pans, while the magnetic stainless steel exterior gives the pans durability and makes them induction capable.Featuring a seamless rim, the vented glass lids allow you to easily see the progress of your meal while reducing the chance of boil-overs. Viking Contemporary cookware combines a fashionable conic shape with signature stay-cool handles and easy to read internal volume measurements.