Crafters are always looking for new and innovative dies for matting and layering their cards, and this set will not disappoint. This unique Semi-Circle Stackers 5 piece thin metal die set features rectangle frames with a row of semi-circles within the frame. These dies are compatible with leading die cutting machines (sold separately). The largest frame measures 5.5" x 4.25" and will cover a standard size or A2 card perfectly.