Kids can use their own x-ray vision to look inside the human body with this fun and colorful multi-layer puzzle. As you peel away the top layer of the puzzle, kids will be introduced to the body organs and muscles. The next layer unveils the skeletal system. In addition to teaching about basic anatomy, this toy also promotes hand-eye coordination, creative expression, and imaginative play. A 28-piece puzzle measures 15 INCH x 11 INCH (38.1cm x 27.94cm). Ages 3-6 years.