This is a 191 piece wooden jigsaw puzzle of Bruce Riley's resin painting "Stem Cell". The puzzle has a crazy irregular edge as shown and irregular piece shapes and connectors. This puzzle is a bit harder than an average puzzle for its piece count! Puzzle design by Tara Flannery. Like all our puzzles, laser-cut from 1/4" thick wood. Packaged in a small blue box with magnetic clasp. Made in USA. Manufacturer's suggested age is 15 years and up.