Aid in study: The rock external tibial canal model part can be moved, picked up and opened, and the tympanic membrane, hammer bone and incus can be separated.Ce will be the best auxiliary tool for your home.exhaustive investigation Digital Signs: We model specially designed digital signage, practical for you to learn accurately and efficiently, to understand better and practice.Gagner of learning and improves the effectiveness of learning time Material: It is made of food grade PVC environmentally friendly materials, computer color matching, high quality hand painted.Poster almost faithful to the structure of the human ear. Taille: 21 cm high, 33 cm wide, 23 cm thick. Laboratory Supplies: PVC material does not have to be afraid of being broken by students, it will be a great addition to your laboratory supplies.Ideal for school teaching tools, learning display and collectibles The detailed ear model shows the different anatomical structures of the human ear, the middle ear and the inner ear.Vous can vividly explain the relevant knowledge to students by the model, allowing students to quickly understand and master, thereby improving learning efficiency