This 12 piece Thinlits die set, Pumpkin Duo Colorize, is designed by Tim Holtz for Sizzix and is part of the Halloween Collection. This die set is designed with Colorize technology, which is an intricate paper layering technique. This die set features two different sized and shaped pumpkins. These Thinlits dies are wafer-thin, 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 for cards, scrapbook pages, tags, journals, planners, invitations, and other paper crafting, mixed media, and home decor projects.