Discovery Toys Body Amazing (Boy) A fun introduction to anatomy! Explore the key layers of the human body with this beautifully illustrated layered wood puzzle. Each layer, when assembled, reveals a key part: Bones, Organs, Muscles, Skin/Hair, and Body. The pieces are numbered by layer on the bottom to aid in assembly. The base includes thumbnail-sized images of all 5 layers for easy reference. Have fun learning more about our amazing body with the cool body facts in the included guide, along with tips to play and learn with the Body Amazing Puzzle. From 4 Years+