Circulon Infinite Hard Anodized Nonstick 4-1/2-Quart Extra Deep All Purpose Pan Stainless steel base - patent pending. Suitable for all stovetops including induction and glass top. Dishwasher safe hard-anodized construction. Superior nonstick exterior. Total nonstick system of circles keeps food from sticking - guaranteed for life. Cast stainless steel handle - oven safe to 500 degrees fahrenheit