The Chicago Metallic Basic Nonstick 1 lb. Loaf Pan features an Ilaflon Resist nonstick finish that won't chip or peel, withstands temperatures up to 550 F and is 10 times tougher than ordinary nonstick surfaces. The folded corners add triple-thickness strength and the reinforced rims eliminate warping in the oven. Heavy weight aluminized steel provides durability and excellent heat conduction with the corrosion-resistance of an aluminum-steel alloy. Chicago Metallic Basic Nonstick Bakeware is the choice of professional and home bakers alike. Dishwasher safe. 25 year warranty.