Aroma Bakeware Silicone Multi Cake Size Flexy Baking Pan Bake Different Sizes Without Needing Different Pans! Bake Two Cakes In One Pan - Great for Multi Colored Cakes Included Divider fits into any of the three grooves Outer Dimensions: 13" x 8" x 2.25" inches Inner Dimensions: 11.5" x 7.5" x 2" Inches