Cookware exterior is harder than stainless steel and extremely wear resistant. Quantanium non-stick interiors are reinforced with titanium for lasting food release and easy clean-up. Safe for use with metal utensils. Aluminum core makes for even heat distribution. Cast Cool Grip handles stay cool on stovetop, break-resistant. Safe for gas, electric, and ceramic cooktops! Oven safe to 500 degrees Fahrenheit. Rim of skillet is tapered to make for clean and easy pouring. Griddle is 11″ square.