This lung breathing experiment kit is an educational toy that demonstrates the principles of lung function. It is designed to engage students in active learning, allowing them to explore the mechanics of respiration. The model's realistic features make it an indispensable tool for teaching complex processes in an accessible manner. Features -Color:Assorted Color -Material:Plastic -Size: 18.00X11.00X11.00cm/7.07X4.32X4.32in -Realistic education: this lung model provides a realistic simulation of human lung -Diaphragm demonstration: the diaphragm movement simulation helps students grasp the concept of how the diaphragm -Detailed lung model: the model's detailed lung structure enhances the learning experience by providing a clear view -breathing: adjustable breathing frequency and depth make this model adaptable to various experimental requirements -Easy to use: designed for ease of use, this durable for both teaching and research, ensuring a smooth educational experience Package list: 2 pcs x Lung breathing model*1 Respiratory model