Reliability & Accuracy: Based on comprehensive medical data and scientific research, this lung model kit accurately depicts the stark contrast between smokers' lungs and healthy lungs. This educational lung model vividly illustrates the characteristics of a smoker's lungs, making it easier to understand the harmful effects of smoking on lung health. Educational Tool: The human lung segment model is an indispensable auxiliary tool in medical education. It has proven to be very effective in demonstrating and explaining relevant knowledge. Comparative models describing the lungs of smokers and healthy lungs are primarily used to demonstrate the effects of smoking on lung health. This model allows you to clearly see the differences between a smoker's lungs and healthy lungs, including changes in color, shape, and structure. Strong display effect: The meticulous lung anatomy model can be conveniently placed on a display cabinet or desk as a teaching reference. By observing and studying this human lung segment model, you can better understand and master relevant knowledge, ultimately improving your learning and work efficiency. Wide range of application: Our human lung model is suitable for places, such as medical schools, hospitals, research institutions, etc. It provides useful practical for students, physicians and researchers. Material: pvc Color: as shown Package Contents: 1 x Lung Anatomy Model Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.