This heavy-duty baking sheet comes from Chicago Metallic, trusted bakeware experts in the States for more than 100 years Specialist design, with raised carrying edges and flat sides to allow goods to slide easily onto the cooling rack Extra-large 40 x 35 cm (15" x 14") size, so it's perfect for big batches of cookies, meringues and other individual treats Made of ultra-durable materials that won't warp or buckle, with a premium non-stick for easy release and clean-up This biscuit sheet is dishwasher safe and oven safe to 232°C (450°F). It comes with Chicago Metallic's 25 year warranty