This paper milk carton is approximately 5-1/4" x 2-1/4" x 2-1/4" when assembled. The file comes with the carton base, coordinating mats, and the scallop heart embellishments. The file is compatible with both the 8x12 and 12x12 mats. https://jamielanedesigns.blogspot.com/2019/01/3d-paper-milk-cartons.html