Features:★Carbon steel material, durable and steady, heat up quickly and evenly, a good tools for baking.★Covered with non stick coating, which is easy to take out your food and very easy to clean.★One set contains 4 pieces of different size baking sheet, more choice for you and more valuable.Notes:The highest working temperature is 230°C/446℉.Specifications:Size: 14 x 10 x 0.7 inch, 9.5 x 7.4 x 0.6 inch, 12 x 7.4 x 1.3 inch, 8.3 x 8.3 x 1.2 inchMaterial: high quality carbon steelAbout BeaseaBeasea are working for research and development of silicone molds, baking sheets and other home kitchen supplements for many years.We are striving to make high quality products and provide sincere service to every our customers.