Features：
1. With the physiological changes of the female postpartum body, postpartum uterine fundus assessment and massage training can be performed
2. Flexible hip joint
3. Accurate anatomical landmarks of the symphysis pubis
4. Vaginal orifice expansion
5. Interchangeable uterus
① Normal uterus
④ Uterus 2 weeks postpartum
② Uterus 1 hour postpartum ㅤ
⑤ Well contracted uterus (hard texture)
③ Uterus on day 2 postpartum ㅤ
⑥ Poorly contracted uterus (soft texture