[Bladder Model]: This model is a comparison model between smoking bladder and normal bladder, designed to help you improve learning efficiency by comparing models to understand and master relevant knowledge [Intuitive Display]: Bladder model kit is based on scientific research and medical data, and accurately reproduces the difference between smoker's bladders and normal bladders, including color, shape, structure [Teaching Aids]: Bladder model can be placed on the display cabinet or on the desktop as a reference for teaching and learning. The model is an important auxiliary tool in medical teaching [Efficient Learning]: You can lively explain the relevant knowledge to the students by the model, let student understand the disadvantages of smoking and understand the importance of lung health, let students to quickly understand and master [Application]: Good for school teaching tool, learning display, and collectibles, is the perfect gift for the students or teacher in your life. Enough to satisfy anyone interested in the human organ