This 3 part human skull has numerical markings for easy identification of the cranial bones, sutures and muscles. Features hand-painted sutures in orange, muscle origins in red and insertions are in blue. The skull cap is magnetic and can be removed for further study of the inner cranial bones. Jaw is spring mounted to show natural movement of the mandible and is detachable for closer investigation. Model includes identification key and is made exclusively from medical quality PVC.