Completely seamless and simple to use! Fat Daddio's manufactures the largest line of removable-bottom pans. Designed for cheesecakes, these 3" deep commercial quality pans can also be used for upside down cakes, tiramisu, ice cream cakes and many other desserts where the top needs to be preserved. Because removal is so simple, they are perfect for bar-type cookies and brownies. Due to the density of cake batters, these pans will not leak. De-panning is as easy as pushing through the bottom!