Features: brand new and high quality Made of high quality carbon steel material which will never rust for a for lifetime of durability. For sweet or savory baking; from cookies to sheet pan dinners. These nonstick baking sheets set are oven safe, retain consistent heating and won'for t warp and for pop out of shape. Meet most of your daily oven pans need. Flexible and stackable, making metal baking pans store easily. Nonstick surface inside and out, making rectangle baking sheets for oven easy to clean, hand wash is recommended. Specifications: Material: Carbon Steel+Non-stick Coating S Size: Approx. 11.81x7.87x1.93inch(30x20x4.9cm) for M Size: Approx. 12.60x9.06x2.05inch(32x23x5.2cm) L Size: Approx. 13.39x9.45x2.36inch(34x24x6cm) Package Includes: 1x Baking Tray note: Please allow 1-2cm errors due to manual measurement. Due to the difference between different monitors, the picture may not reflect the actual color of the item.