Mormon Prophet Joseph Smith Jr. placed "seer stones" in a hat to translate the Book of Mormon. This is a replica of one of the seer stones which belonged to Joseph Smith. The model size matches the size of the original - approximately the size of a U.S. quarter (25mm or ~1" in this model).Be sure to enable support structures when printing as the lower side needs support to print properly. You may want to print a larger copy if you're interested in more detail as opposed to the original size of the stone (try 2x).