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.