Constructed with heavy gauge anodized aluminum for durability and even heat distribution throughout the sides and bottom of the pan, Viking Hard Anodized Cookware features a stainless steel base making it exceptionally stable and compatible with all cooktops including induction (except for 1 Qt. Sauce Pan and Double Burner Griddle).Featuring PFOA free nonstick, each piece is coated with three layers of durable nonstick coating to ensure maximum release and longevity, even when using metal utensils. The saucepans and larger vessels feature interior measurement markings for accurate addition and reduction of ingredients. Tempered glass lids allow you to look and cook as you watch the progress of your meal. Designed with ergonomics in mind, Viking signature handles are hand crafted from cast stainless steel and riveted to the pan for a lifetime of durability. Lid handles and long handles feature heat breaks to help them stay cool on the cooktop during use. Long handles feature a finger stop that guides your hand to the perfect grip for comfort, balance and control. Viking Hard Anodized can be used on all cooktops, including induction, in the oven, or on the grill up to 500°F, making it perfect for finishing dishes the same way a professional chef does. The glass lids are oven safe to 400°F.