Calphalon IB0601A Simply Nonstick Bakeware Set 6pc 2 8-Inch round cake pans, 10-by-15-inch cookie sheet, 9-by-13-inch cake pan, 12-cup muffin pan, and 4-1/2-by-8-1/2-by-2-1/2-inch medium loaf pan. Made from heavy-gauge carbon steel for even heating with no hot spots. Durable nonstick coating; reinforced rolled edges prevent warping. Oven-safe up to 450 degrees F; use nylon, wooden, or coated utensils; dishwasher-safe. Ships in Certified Frustration-Free Packaging.