Application：Suitable for anyone interested in anatomy, nursing, physiology. Understand the various organs of the human body and their relative positions. Very suitable for children's education, perfect gift for children. ? Numbers skull unique design, all of the important anatomical structures are displayed numerically. ? Prototype of high quality, hand made in a solid, not broken, composed of high-quality ecological PVC. ? It can be divided into skullcap, base of skull and mandible. ? The jaw is detachable with a mandibular spring.