The Calphalon Nonstick Baking Sheet Set (Set of 2) is a must-have kitchen accessory for baking the perfect batch of cookies. Made from steel, the gray baking sheets are quite durable, without compromising on durability. The sheets have a non-stick surface and are oven safe up to a temperature of 500F. The rolled edges contribute to the ergonomic design of the Nonstick Baking Sheet Set (Set of 2) from Calphalon. It is easy to clean and is dishwasher safe. The baking sheet set is refrigerator safe and the non-stick surface is non-toxic as well. Wood or rubber utensils are recommended for use with this baking sheet set.