The value of a high-quality cast of juvenile skeleton for laboratory teaching purposes is inestimable given that such skeletons are rarely included in research collections. Our 5-year-old skeleton (SC-183-A or SC-183-D) is produced from the skeleton of an average 5-year-old. Age is confirmed by the pattern of tooth eruption and the developmental age of individual bones. The reproduction of this skeleton includes all of the primary and secondary centers of ossification which demonstrate sufficient morphological detail to be isolated, recognized, and identified out of anatomical context.