Fillables features innovative pans that allow for every slice to contain a surprise inside that can be filled with your favorite treats, such as sprinkles, frosting, caramels, candy, marshmallows, pudding and more!;Each pan features a scalloped shape which act as cutting guides that ensure the filling will be contained within each individual serving , each slice is presented with the surprise filling inside;The pans are made from durable, 0.6 mm gauge carbon steel with a Whitford Xylan nonstick coating for quick release and easy cleanup;Each pan holds 1 package of cake mix (2 packages needed) and the top-side pan can also be used as a traditional cake pan allowing for a multipurpose use;Each Fillables cake pan set features a detailed instructions guide and inspiring recipe booklet; serves up to 12