This 54 piece Thinlits die set, Specimen, is designed by Tim Holtz for Sizzix. this die set features files, tags, number sets, and more. This die set is designed to coordinate with the Sizzix Postale die set and the Sizzix Collector die set (sold separately). These Thinlits dies are chemically etched dies that are designed to cut, emboss, or stencil a single sheet of cardstock, paper, metallic foil, or vellum. These dies are compatible with leading die cutting machines (sold separately). These dies can be used to make cards, scrapbook pages, tags, journal and planner pages, and other paper crafting and mixed media projects. The largest die measures 6.12" x 4.62" and the smallest die measures 0.12" x 0.25".