The 4 times enlargement of a larynx is ideal for lessons on speech and speech pathology. All the structures associated with the larynx are visible like the hyoid bone, cartilage, epiglottis, and muscles. The model features a drawstring which can be pulled, causing the arytenoids cartilage to pivot, to simulate the function of the vocal cord. In addition the epiglottis open and closes to demonstrate swallowing. Mounted on a base.