This set of two thin metal dies is part of the Essentials Collection from Pinkfresh Studio. This set includes Slimline Blanket Stitch and Mini Slimline Rectangles. These dies are compatible with leading die cutting machines (sold separately). These dies can be used for slimline and mini slimline cards, as a frame on a scrapbook page, and other paper crafting projects. The large slimline rectangle die measures about 3" x 8" and the mini slimline die measures 3" x 6".