[Features]

I.Standard trachea anatomy ,touchable trache 
2.Simulate dorsal position and neck extending
3.Percutaneous tracheostomy,including various incision:longitudinal incision,transverse incision,crisscross incision,U-shape and inverted-U shape incision
4. Cricothyrotomy endotracheal intubation
5.The model allows the user to observe the internal situation of the neck from the head when the cut in the artery is determined.
6.changeable trachea and neck skin