Cheesecake pans with Removable bottom by Magic Line are made from 14 gauge heavy aluminum . Removable bottom pans are ideal for the easy release of cheesecakes or cakes whose crumb crusts are difficult to remove. Magic Line aluminum Cheesecake pans are manufactured in the USA! You will like Removable bottom Cheesecake pans better than any springform pan you have ever used. Guaranteed! Lifetime warranty against rusting, warping, flaking, or chipping. Dishwasher Safe.