Marble Effect: Each piece of Marblestone bakeware features a gray surface with a speckled marble design, perfect for creating a new collection or adding to your existing cookware. Non-Stick Coating: The non-stick surface allows food to be easily released without leaving any residue, making for effortless cleaning! This tray is also PFOA-free for safe and healthy cooking! Oven Safe: Designed to heat food evenly and achieve perfect cooking results every time, this tray is oven safe up to 220°C. Carbon Steel: Made from durable, heavy carbon steel, this tray is lightweight and designed for easy handling in and out of the oven. Versatile Cooking: With raised sides that contain food and oil well, this baking sheet can be used to make a variety of homemade baked goods and dishes, including cookies and biscuits, roasted meats and vegetables, sweet and savory treats!.