[Human Alveolar Model]: This model shows the alveoli of human smokers and the alveoli of healthy people. By comparing the design, you can combine theory with practice and fully understand and master relevant knowledge to get the best learning effect [Teaching Tool]: Smokers' lungs have obvious internal tumors and physically simulated external tumors to encourage students to feel the texture of the lungs, and remember that smoking is a known cause of lung cancer [Visual Aid]: Can be used as a teaching of physical health knowledge of the visual aids. The model can convey to the public the serious harm of smoking to lung health, and remind people to quit smoking or avoid smoking [Excellent Quality]: Constructed from durable PVC, designed to endure repeated use while maintaining clarity and detail, serving as a functional educational tool and decorative piece [Widely Used]: Ideal for school teaching, displays, and lab use, enhancing educational experiences for both students and educators. A perfect gift for students, teachers, or medical enthusiasts