This lung breathing model is designed for middle and elementary school science experiments, providing a hands-on way to understand human respiratory functions. The model accurately simulates the process of breathing, making it an excellent educational tool for young learners. Its interactive design helps students visualize and grasp complex biological concepts easily. Features -Color:Multi -Material:Plastics -Size:15.50X5.80X5.80cm/6.09X2.28X2.28in -Realistic simulation: this lung breathing model accurately simulates real respiratory movements, vividly demonstrating the working principles of the lungs to help students deeply understand the breathing process -Enhances learning: by observing experiments, students can identify human organs, develop scientific experiment skills, and spark their interest in science -Clarifies abstract concepts: this model helps solve the problem of understanding abstract concepts in traditional teaching, allowing students to intuitively experience respiratory movements and improve learning outcomes -Versatile educational tool: suitable for science experiment classes in primary and secondary schools, it can also be used as a science education tool to enrich students' knowledge and broaden their horizons -Safe and reliable: made from hardwearing, safe materials, this model ensures the health and safety of students Package list: 1 x breathing model