6-sided. This box comes sized at approximately 3-1/2" x 4-1/4" with each panel being about 2" x 2-3/4". 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/2016/08/flower-gift-boxes.html