Health & Material: Each cake pan is made of free carbon steel with nonstick coating. Our Non stick coating is a food grade safety coating with no harsh chemicals or hazardous substances. It allows the cake to be easily removed without damage.The material of the pan makes sure that the heat is evenly spread out throughout your cake. Kitchen Essential Springform Pan Set: It Includes 5pcs Perfect for a family with four or five members. This round bakeware set is Great for Individual Single-portion Cakes, Baby Birthday Cake, Layer Cake, Smash Cake, Pumpkin Pie, Kids Confection, Cheesecakes, Pizzas. Stainless & Detachable Bottom: Spring offers a tight leak-proof seal and a easy release detachable bottom. The stainless steel springform has been upgraded which is stronger and easier to switch but not fall off or crack, allowing the cake to be pulled out perfectly with little effort. Clean up the pans be much more easy. Microwave & Oven Safe: Compatible With 5 Qt or 6 Qt Pot. Heat-resistance temperature is up to 445℉ (230℃). These cake pans are widly chose in restaurant and bakery kitchens. This pans are not intended to be watertight though. Anything thinner than cake batter would leak out of the bottom. Washing Advice: Hand wash is recommended only. To protect the non stick coating, please choose soft tools and mild detergent when you clean the cheesecake pan. Avoid and rough tools to scratch the pan.