This two piece thin metal die set, Snail Mail, is designed by Eileen Hull for Sizzix. This die set features a solid frame and a frame with perforations to make it look like postage stamps that can be used as a single piece or you can use the various pieces. These dies are compatible with leading die cutting machines. These chemically etched dies are designed to cut, emboss, or stencil a single sheet of cardstock, paper, vellum, or foil. These dies can be used for cards, scrapbook pages, tags, journals and planners, and other paper crafting and mixed media projects. The largest die measures 3.75" x 5" and the smallest die measures 3.5" x 4.75".