This 13 piece thin metal etched die set, Mini Envelopes Set 01 is designed by Cathe Holden and is part of the Flea Market Finds Collection from Spellbinders. This set features a long and short coin-style envelope with matching stationery inserts to slide into the envelopes. There are two different window shapes to cut the fronts and three elements to use with both envelopes, a tag, folded reinforcement holes, and closure circles. These dies are compatible with leading die cutting machines (sold separately). These dies can be used on cards, junk journals, collages, scrapbook pages, tags, and other paper crafting projects. The largest die measures 3.43" x 5.62" and the smallest die measures 0.56" x 0.25". The long envelope assembled measures 1.63" x 4.25" and the short envelope assembled measures 1.63" x 1.56".