1. Vertical section model, designed in accordance with the human physiological anatomy structure.
2. Accurate anatomic marks, obvious outline of uterus and bony pelvis.
3. Delivery mechanical parts demostrate the whole delivery process, inclduing engagement, descending, flexion, internal rotation, extension, resoration, external rotation and shoulder delivery.
4. Simulational birth canal skin, simulate the real delivery situation.
5. The fetal skin is soft and fontanel is visible.