Features： 1、This model is suitable for secondary schools, and can be used as a visual teaching aid to teach dental knowledge. 2、Deepen students' understanding of tooth structure and the significance of dental healthy care. 3、Combined with teaching, practical operation and other teaching methods, let children have a preliminary understanding of the basic structure and function of teeth. 4、Understand the importance of dental healthy, know about the prevention of dental caries and tooth replacement knowledge, develop good habits of tooth care. 5、This model is 2 times larger than normal oral cavity. It is composed of 28 permanent teeth, which are fixed in the whole mouth. Specification： Item Type: Teeth Model Material: ABS Features: 1. This model is 2 times larger than normal oral cavity. The size of this model is 12 x 12 x 9cm / 4.7 x 4.7 x 3.5in. It is composed of 28 permanent teeth, which are fixed in the whole mouth. 2. The upper and lower jaws can open and close freely. 3. Maxillary central incisors, lateral incisors, fangs, premolars, molars, upper palate, etc. 4. Mandibular incisors include central incisors, lateral incisors, fangs, premolars, molars, lower palate, etc. Use and storage: This model is suitable for indoor use between -25℃ and 40℃.Dust should be removed after use and sealed with plastic bags. The storage place should be dry, ventilated and without direct sunlight.The model should avoid contact with organic solvents and heat sources to prevent discoloration and deformation. The whole mouth is fixed and cannot be removed Package List： 1 x Teeth Model 1 x Brush