The Kitchen Essentials from Calphalon Baking Sheet is perfect for making cookies, biscuits and rolls. This set has 2 baking sheets that are made of heavy-gauge carbon steel for even heat distribution. The interlocking nonstick layer allows for effortless release of the cookies and enables easy cleanup. The wide edges let you easily remove these cookie sheets from the oven. These carbon steel baking sheets can withstand up to 450°. Theyre dishwasher safe for easy cleanup.