- High quality stainless steel design reduces aluminum contact with food. The cookie sheet and cooling racks are pure stainless steel, free from harmful substances, making this a healthier replacement for toxic coated bakeware. Rust resistant and durable for long service life. - Adjustable racks for flexible use. The feet can swing over 90 degrees and stack stably on another rack to form a multi layer baking rack. Provides higher and larger space to cool and bake more food at once. Collapsible design fits large sheet pans and is easy to store. - Large sheet pan with solid stainless steel construction. Extra heavy duty to resist deformation and built without toxic coatings that could flake into food. Spreads heat quickly and evenly. 1 inch deep rim around the edges holds more food and prevents sauces from leaking. - Craft and finish details. Rack wires are welded firmly to steadily support food. Dense parallel lines prevent food from slipping through. Smooth rolled edges improve comfort when handling and transferring. Mirror finish stays shiny and helps with easy food release. Easy to clean by hand and dishwasher safe. - Practical use scenarios. Bake a large batch of cookies on the sheet pan and use the adjustable rack to create a multi level cooling space. Roast vegetables or meats on the pan and use the racks to improve air flow and browning. Set up a compact, multi layer cooling rack for pies, cakes and pastries in a busy kitchen.