Pyrex 3-Piece Metal Cookie & Muffin Sheet Bakeware Set, Lightweight Stainless St

3-PIECE SET: Includes (2) large cookie sheets, (1) 12-cup muffin pan. WARP RESISTANT: Made from high quality steel for even heat distribution and long-lasting performance. PREHEATED OVEN SAFE: Suitable for high heat baking up to 450˚ F / 232˚ C.