This double-sided floor puzzle provides a great way for children to learn the basics of anatomy. One side shows the skeletal system with labels and an identification key for individual bones. The reverse side depicts the digestive and circulatory systems, also with key areas and organs labeled. 100 pieces 4' x 2' Age 8 and up. D4030$10.95 Credit Cards Accepted: Discover Card, MasterCard, Visa. Lawrence Hall of Science Members receive a 10% discount on all purchases. Your purchases help to support the educational mission of the Lawrence Hall of Science. © 2006 Regents of the University of California