1.This model is suitable for general teaching aids in general secondary schools and secondary specialized schools. 
2.It mainly enables students to understand the external shape and internal structure of the heart, as well as the large blood vessels related to the heart, and to further understand the pathways of the systemic circulation and pulmonary circulation. 
3.Divided into 3 pieces, 4 times magnification.
4.Size: 25*23*23cm
5.Made of PVC