Features: The model is composed of 8 parts: auricle, external auditory canal, middle ear tympanum, tympanic membrane and ossicles, petrous part of temporal bone, inner ear labyrinth and Eustachian tube, and shows the outer ear, middle ear tympanum, tympanic membrane and ossicles, eustachian tube, temporal bone There are 58 signs in total for the rock and inner ear labyrinth. Ear anatomical model understands the internal structure of our ears and the positional relationship between the outer ear, middle ear, inner ear and balance organs. Great for Schools, hospitals, visual aids in physical health teaching. Really a great teaching aid for anatomy and physiology course Spec: Size: 4 times magnification, height 41cm, width 44cm, thickness 26cm Material: PVC material, paint, computer color matching, colorful painting Packing list: 1 Ear Internal Structure ModelSchool teaching, learning, researching display tool and lab ornament supplies. Great for Schools, hospitals, visual aids in physical health teaching. Really a great teaching aid for anatomy and physiology courses. Made of food-grade PVC material, exquisitely hand-made, no weird smell, washable and not broken, strong and firm, anti-falling and compressive, healthy and safe. Perfect teaching model for scientific, colleges, universities, patient education and medical offices, allowing for the study of the small details and bones in the human ear. Showing the structure of the outer ear, middle ear tympanum, tympanic membrane and ossicles, eustachian tube, petrous part of temporal bone and inner ear labyrinth, etc. This model is composed of the auricle, external auditory canal, middle ear tympanum, tympanic membrane and ossicles, petrous part of temporal bone, inner ear labyrinth, and Eustachian tube.