Size: 16.5cm high, 21cm wide, 8cm deep. It can be placed on the ground for your teaching demonstration, and is the best tool for your teaching demonstration. The model consists of two parts: an enlarged alveolar model and an enlarged lobe model. It shows structures such as alveoli, alveolar epithelium, alveolar sacs, alveolar ducts, and alveolar capillaries. It is a rare auxiliary tool for your practical training. Laboratory supplies: a rare tool for related practical training. The PVC material does not need to be destroyed by students, and will be a good supplement to your laboratory supplies. Using PVC material: This model can explain relevant knowledge and serve as an intuitive demonstration auxiliary tool for human anatomy display and teaching. The human anatomy​ model, excellent to display, easy for teaching, you can explain the human anatomical structure easily, let can identify knowledge.