This commercial-quality cookie sheet has a silicone coating that's designed to release foods quickly and effortlessly. Featuring a corrugated construction for strength, the large pan delivers even heat distribution for perfectly browned cookies and roasted vegetables. Included cooling rack elevates cooked foods, allowing air to circulate beneath and stop the cooking process.Aluminized steel pan. Steel cooling rack. Oven-safe up to 450 degrees. Warp-resistant. Hand wash. Imported.