At Chicago Metallic, we believe that serious baking requires serious bakeware. That's why we've been crafting innovative equipment, for professionals and serious home bakers, for over 100 years. We've built a global reputation one kitchen at a time. People know our products are built for durability and can be depended on year after year. We're proud to offer three distinct lines of premium bakeware plus stylish, innovative specialty bakeware and baking essentials. The Chicago Metallic Professional line of bakeware makes cooking and baking a delight. The non-stick surface easily releases each recipe and makes clean-up effortless. It's the preferred choice of bakers who understand quality and design, but also want professional-grade durability. An essential pan for every kitchen, this set provides more flexibility than traditional cookie sheets. Ideal for like one-sheet dinners, jelly rolls, bars, and cookies but can also be used to make one-sheet pan meals, roast vegetables, reheat leftovers. The heavyweight aluminized steel is designed for superior heat conduction and even baking, and its wire rod reinforcement prevents warping. They're strong and durable, so even demanding chefs should be able to rely on them for years. Oven safe to 450°F / 232°C; not intended to be used under the broiler. Sharp-edged utensils and knives should not be used.