Calphalon 2 Piece Nonstick Bakeware Cookie Sheet Set, Toffee Heavy-gauge steel core won't warp and heats evenly without hot spots so your cookies come out of the oven perfectly and evenly browned Toffee-colored nonstick surface easily releases baked goods for flawless results Lighter color makes it easier to prevent overbrowning For cookies, dinner rolls or other baked goods, reach for an all-purpose cookie sheet from Calphalon; The two upturned ends are for lifting; open sides allow items to slide right off Dishwasher-safe, and protected by a Full 10 Year warranty