This educational puzzle is four feet tall and contains 100 pieces! Learning about the human body is easy and fun when the details are nearly life-sized and simplified into clear parts. Double side, one puzzle side shows the skeletal system, while the other side shows the organs and major arteries, using number keys to list all of the marked parts! Made of thick, durable cardboard, this puzzle is highly durable and easy-to-clean.Ages 8 and upby Melissa and Doug