The model consists of two parts, a midsagittal section of the larynx, showing the structure of the trachea, left and right main bronchi, and segmental bronchi. It is a rare auxiliary tool for you to learn relevant knowledge comprehensively and systematically. Use different colors to distinguish different positions. The colors are bright and easy to attract the attention of students. Teaching demonstrations can be carried out to promote students' understanding and improve the quality of teaching. We have specially designed digital indicator signs with a total of 50 position indicators. Help you conduct accurate and effective re and study, improve learning efficiency, and avoid unnecessary waste of time. It adopts food-grade PVC environmental protection material, computer color matching, advanced spray paint. This material will be pred for years and passed on to future students to deepen the understanding of the structure of human organs. So this would be a great addition to the lab. Professional Customer : If you have any questions about our items, please us, we will help you.