This Sweet Stacks 12 piece Honey Cuts steel craft die set is designed for mini slimline cards. This set of dies is from Honey Bee Stamps. These dies are compatible with leading die cutting machines (sold separately). This set is going to make layering on your mini slimline cards so much easier. The largest frame measures 6" x 3" and the smallest frame measures 3 1/4" x 1/8".