Take your baking to the next level with this Aluminum cookie sheet by Martha Stewart! Constructed with pure aluminum that never rusts, this sheet heats evenly for consistent results every time. Bake like a pro with plenty of room for big batches. This sheet is flat on two sides and slightly raised on the others for easy lifting without compromising baking space. Features double tapered rims for extra rigidity and easy handling.Details:Silver17.75" x 14" x 0.3"2.55 lb.Aluminum