1.This model is intended for visual teaching aids in medical colleges where human anatomy, thoracic surgery, and internal medicine are explained. 
2.Show two lung segment, 8parts of left lung ,10parts of right lung,
3.Observe the distribution of the bronchial tree from transparent shell lung.
4.Lung outside made from transparent plastic, 
tracheal and bronchial tree made from plastic
5.Size: 2 times magnification.