The Chicago Metallic large non-stick cookie sheet is the preferred choice of bakers who understand quality and design, but also want professional-grade durability. The non-stick surface lets you easily release each recipe and effortlessly clean-up afterwards. The Chicago Metallic large non-stick cookie sheet makes cooking and baking a delight. You can slide the cookies right off the edgeless pan onto a cooling rack and pop the next batch in the oven. Non-stick surface easily releases cooked and baked foods and makes for effortless clean up. Great quality and preferred design with professional grade durability. Dishwasher safe, but hand washing recommended. 25 year limited warranty.