Calphalon Nonstick Bakeware Baking Sheet with Cover, 12" by 17", Toffee Heavy-gauge steel heats evenly without hot spots so your cookies and desserts turn out perfectly Beautiful, toffee-colored nonstick finish ensures easy release of baked goods Snap on plastic cover helps preserve freshness and protects when you're on the go Dishwasher safe for easy cleanup Protected by a Full 10 Year Warranty