Excellent Quality- Healthy and high quality materials. The baking sheet is made of high quality stainless steel, without toxic chemical coating and is extremely resistant to corrosion and warping. Handcrafted Advantage- Smooth surface and edges make it comfortable to hold without rough spot. Make food non-stick and easy to release. Easy to Clean- Deep edges can hold more food and prevent food juice from leaking everywhere to keep your oven clean. The mirror finished surface always keeps shining which is easy to wash by hand or in the dishwasher. Cooling Rack- The stainless steel rack is designed with four legs, which helps keep the meat elevated above the juice and easy to release. Perfect Size - Dimension: 26 x 20 x 2.5 cm. Proper size for home cooking. Perfect for your daily baking and cookies. You can use it as a serving tray. The stainless steel cookie sheet is made made of high quality 430 (18/0) stainless steel without chemical coating. More aluminum in your food, bringing you a healthier cooking experience. Features: External dimensions: 26.5 x 21.6 x 2.5 cm. Internal dimensions: 24 x 19 cm. Material: 430 stainless steel. Finish: glossy mirror Color: silver. Weight: 0.45 kg. Content: 1 baking tray: 26.5 x 21.6 x 2.5 cm. 1 cooling rack: 24 x 19 x 0.3 cm. Why choose a stainless steel oven dish 1. The stainless steel pan is healthier and non-toxic than aluminum pans. 2. The stainless steel pan is dishwasher safe, but the aluminum pan is not. 3. The stainless steel sheet is easier to clean, even by hand. 4. Stainless steel plate less adherent than aluminum pans. Point for stainless steel. Q: It is a normal phenomenon that the pan deforms due to uneven heat. It can return to its original shape when cool and do not use it. A: Avoid preheating the pan and adding your food once the pan is hot.