MARBLE EFFECT: Each piece of Marblestone bakeware has a grey finish with a speckled marble design, perfect for creating a new collection or adding to your existing cookware. VERSATILE COOKING: Designed with raised edges to keeping food well contained, it has a perforated base to ensure extra crispiness and can be used to make a variety of dishes including fries, wedges, biscuits, roasted vegetables and more! CARBON STEEL: Made from durable heavy gauge carbon steel, this tray is lightweight and has been designed so you can easily put it in and take it out of the oven. NON-STICK SURFACE: The non-stick coating allows food to be released easily without leaving any leftovers behind, perfect for hassle-free cleaning! This tray is also PFOA-free for safe and healthy cooking! OVEN SAFE: Designed to heat food evenly for perfect cooking results every time, this tray is oven-safe up to 220°C.