Feature:
1.Standard tracheotomy position, touchable trachea for locating cutting position
2.Accurate structure: thyroid cartilage, cricoid cartilage, crico-thyroid membrane
3.Practice percutaneous thyrocricoid puncture, cricothyrotomy, tracheotomy
4.Different cuttings: vertical, horizontal, cross shape, “U” shape, reverse “U” shape
5.Replaceable trachea and neck skin