The cups are designed so that as popovers bake, rise, and pop over just like in the bakery, they won't spread into the others in the pan. Deep tapered cups promote even baking and better air circulation. The pan is also great for making muffins and cornbread. Non-stick; easy release and dishwasher safe. Pan measures 16" x 10 3/4" x 2" with twelve cavities. Each cavity measures approximately 2 1/4" x 2 1/4" deep.