Features：
1. Lifelike anterior and posterior fontanel, coronal suture, sagittal suture
2. Realistic umbilical cord, soft and elastic
3. The umbilical cord can be ligated, with real blood outflow.
4. Umbilical venous blood sampling, umbilical venous intubation etc.
5. Umbilical cord is suitable for repeated use
and supplied with spare cords for replacement