Carbon steel material: crafted mainly from carbon steel for even heat distribution. Safe and reliable, with no odor, and resistant to fading, wear, breaking, or deformation. Suitable for most kinds of microwave ovens and ovens. Stackable and non stick: deep baking tray with a non stick coating for easy food release and quick cleaning. Smooth rolled edge for safety. Flexible, stackable design for compact storage. Available in four square sizes from S to XL. Multipurpose use: deep baking sheet suitable for many baking tasks, including bread, cake, and barbecue. A versatile oven pan option for your daily baking needs. Elegant appearance: fine workmanship with a heightened, thickened design. Gold color finish is simple and elegant, enhancing baking presentation and suitable for antique or retrostyle kitchens. Practical use scenarios: Bake brownies, bars, or cookies with even browning and easy release. Bake breads, loaves, or dinner rolls for consistent crumb and shape. Roast vegetables or small meat portions for uniform browning and easy cleanup.