Calphalon Commercial Nonstick Bakeware Collectors Edition 3-Piece Bakeware Set Set includes 13-by-18-inch jelly roll pan, 8-inch square cake pan, 6-cup muffin pan Heavy-gauge aluminum construction; rolled reinforced rims prevent warping Double nonstick coating for durability and easy release of baked goods Two-tone design ensures baked goods stay moist and dont overbrown Oven-safe to 450 degrees F; lifetime warranty