The human lymphatic system model shows the composition and structural characteristics of the lymphatic system. Digital signaling: We specially design digital signaling with 63 position indicators.It is convenient that you learn precisely and effectively, understand and practice better, save learning time and improve learning efficiency. Applicable to schoolsand in physical health teaching, it can be used as a visual help to teach knowledge about physical health and deepen the understanding of the structure of human organs. The lymphatic system, like the blood circulation system throughout the body, is a reticular liquid system.The system consists of lymphatic vessels, lymphoid organs and lymphatic liquid. The model is made of PVC material for food use and has a realistic form.It is used as a visual presentation tool for showing and teaching human anatomy.