Kaiser Bakeware 4 inch Heart-Shaped Springform Series "Patisserie" The pans sides spring free from the base when the clamp is released, so you can remove baked goods without breaking. Springform design is particularly helpful when releasing items that cant be inverted, such as cheesecake, quiche, deep-dish pizza and layered frozen desserts. Large springform clamp opens sides of pan and releases food easily. Clamp design and wide base prevent leaks Nonstick coating ensures easy release and clean up. Ceramic coating on base is scratch resistant.