Features：
1. The model is in lying position with realistic texture
2. Accurate anatomical structure, clavicle, sternum, ribs and intercostal space can clearly palpable
3. The 2nd anterior intercostal space of the midclavicular line (bilateral) , the anterior axillary line or the 6th intercostal space of the mid-axillary line (bilateral), thorax puncture and drainage can be performed respectively.
4. Drainage tube after treatment practice