Features：
1. Standard tracheotomy position, touchable trachea for locating cutting position
2. Model in supine position with neck extension
3. Practice traditional percutaneous tracheotomy, different cuttings: vertical, horizontal, cross shape, “U” shape, reverse “U” shape
4. Able to practice thyrocricoid puncture, cricothyrotomy
5. Press the manual ball to find the artery and determine the location of the tracheotomy
6. Replaceable trachea and neck skin
