Dimensions: Zoom in 4x, 21 32 13 cm 8.3 12.6 5.2 inches The model has the petroo part of the temporal bone, the labyrinth can be collected and open and the tympanic membrane, the Malleo and the anvil can be separated. It is composed of an external ear, a middle ear, the petroo part of the temporal bone and the maze of the inner ear. The headset pavilion structures were shown, an external auditory channel, medium ear stand, tympanic membrane and auditory oxycens, Eustachio tuba, petroo part of the temporal bone and the maze of the inner ear. Made of ecological PVC material, computer color correspondence, advanced color paintingMade of ecological PVC material, computer color correspondence, advanced color painting. The headset pavilion structures were shown, an external auditory channel, medium ear stand, tympanic membrane and auditory oxycens, Eustachio tuba, petroo part of the temporal bone and the maze of the inner ear. It is composed of an external ear, a middle ear, the petroo part of the temporal bone and the maze of the inner ear. The model has the petroo part of the temporal bone, the labyrinth can be collected and open and the tympanic membrane, the Malleo and the anvil can be separated. Dimensions: Zoom in 4x, 21 32 13 cm 8.3 12.6 5.2 inches.