This set of 6 thin metal dies coordinates with the stamp set Color My World (sold separately) by Sunny Studio Stamps. These dies, Sunny Snippets, are custom craft dies made from high quality steel and are compatible with leading die cutting machines (sold separately). These dies do need to be cut apart and sharp edges smoothed with a pair of flush-cut micro wire cutters (sold separately). The largest die measures 2.37" x 1.89" and the smallest measures 0.25" x 0.25".