The 66fit giant model of the ear, for elementary science classes, is 5 times enlarged and mounted on a plastic base.FeaturesMaterial: Washable PVCSize: 43cm x 25cm x 15cm6 PartsDescription1. External ear: Showing the shape of the auricle and the primary features of the external auditory meatus.2. Middle ear: Showing the tympanic membrane, the three auditory ossicles (hammer, anvil, stirrup) and the eustachian tube.3. Internal ear: Showing the vestibule, cochlea and the three semi-circular canals of the osseous labyrinth.