This blue steel baking sheet is perfect for a wide variety of baking needs, from roasting vegetables, baking cakes, tarts, pies, puff or shortbread pastries, or baking pizzas. The blue steel makes it suitable for high-temperature baking or cooking. No bending. Made of blue steel Low to high heat Perfect heat transmission for golden and crusty results Made in France 15.75" L x 11.8'' W (2.5 lbs) Thickness: 1.2mm USE & CARE Can be used with a silicone mat Do not use for cold ingredients After use, scrape and brush to remove built-in residues Slightly grease to avoid rusting Dry immediately after washing and store in a dry place Hand wash recommended