Bakes 24 little muffins at a time jt the right size for snacks kids lunches or as part of a bountiful brunch. Experienced bakers know that aluminum due to its superior heat conductivity is the key to baked goods that rise and bake evenly. Our pure aluminum which will never rt offers lifetime durability. It?s also reinforced with an encapsulated steel rim to prevent warping. Not dishwasher safe please hand wash only. Proudly by Nordic ware.