This thin metal die, Piano Circle, is from Paper Rose. This die depicts a portion of a piano keyboard in a circle. This die is compatible with leading die cutting machines (sold separately). This die can be used on cards, scrapbook pages, journal and planner pages, and other paper crafting and mixed media projects. Note: Due to the intricate nature of this die, a metal shim (sold separately) may be required in some machines. This die measures 2.95 in diameter.