The Nordic Ware Oven Crisp Baking Tray is a versatile two-piece set designed for effortless, professional-quality cooking and crisping. The carbon steel rack nests neatly inside the aluminum tray, allowing hot air to circulate for maximum crispiness and even cooking.Made from durable, high-quality materials, this two-piece Oven Crisp Baking Tray is oven safe up to 400-F and built to withstand frequent use.