This package of two thin metal dies, Scene Building: Den Dies is from Picket Fence Studios. This die set features two sizes of dies, each is a hole in the trunk of a tree that serves as a den for small animals. These dies are compatible with leading die cutting machines (sold separately). These dies can be used for cards, scrapbook pages, tags, journals, and other paper crafting projects. The largest die measures 1.63" x 1.88" and the smallest die measures 1.31" x 0.88".