1. [ENJOY HEALTHY BAKING] baking sheets and baking racks are constructed with pure stainless steel without any toxic substance or chemical coating, PTFE, PFOA, BPA and rust . You needn't worry about coating flaking off or noxious material leaching into your food, great substitution of aluminum pan, y and for daily use. 2. [SOLID CONSTRUCTION] Thick gauge with sturdy construction, these heavy-duty half sheet pans have a reinforced, rolled edge that provides extra strength to help resist warping in the oven. The cooling racks with raised feet facilitate air circulation for evenly baked goods. Feel sturdy and solid in hands, durable for serving many years. 3. [ADVANCED CRAFT] Baking trays with smooth rolled edge and round corner without rough spot for comfortably hold and transfer. 1-inch deep rim avoid food juice flowing everywhere, keep your oven neat. Shiny and attractive mirror finished surface provides effortless release of baked goods. Both the cookie sheets and wire racks are easily clean even wash by hand, dishwasher making both cooking and clean-up a breeze! 4. [VERSATILE BAKEWARE KIT] The oven pans and baking racks are great for using separately or together. Perfect for baking cookies, breads, bacon, steaks, vegetables, ribs, chicken wings, drumsticks, brownies, pizza and more. The wire racks fit perfectly inside the pan to avoid foods falling through, weld firmly with dense parallel lines allow fast and even air circulation for baking or cooling.