This set of 8 dies is designed by Olivia Rose for the Sizzix Mystical Collection. This set contains a magical unicorn set against a moon and clouds. These dies are wafer thin and are chemically etched, and are designed to cut, emboss, or stencil on any cardstock or papers. They work well with any die cutting machines (sold separately). This Mystical Collection is sure to become a favorite. The approximate die sizes are 3 1/2" x 3 1/8" for the largest die and 1/8" x 1/8" for the smallest.