This box is approximately 5" x 6" x 2-1/4" and the lid sits over the bottom box. The file comes with the base box pieces (4), the lid pieces (4) , two large scallop hearts (one for the bottom of the box, one for the lid), and the detailed scallop heart cut. The file is compatible with both the 8x12 and 12x12 mats. You can find additional images and a full tutorial on my blog: http://jamielanedesigns.blogspot.com/2014/02/feeling-love.html