This mold and its convenient sliding bands allow you to easily adjust the diameter of your cake, ensuring consistency of size and shape. In addition, it assists with portion control, helping to prevent waste and money on food costs. When baking your delicious cakes and other desserts, just use a sturdy bun pan under it with either parchment paper or aluminum foil. It can also be used to freeze or refrigerate cakes, mousse, and other layered desserts! It adjusts between diameters of 6 1/4" - 8 1/2". With all of the sizes this mold can make, you can mix and match your creations to make a variety of designs!