*4D tooth model Through this hands-on practice, models can be constructed to closely study the complexity of the teeth. * Quality - The made in non-toxic PVC material, tasteless, easy to clean. Able to be washed and the material will last for years. *Hand-Painted In Detail: This model contains 23 detachable parts and display stands.Hand-painted parts are the quality of education. *Application - Suitable for anyone who interested in anatomy, nursing, physiology. Understanding the organs of the human body *Good for school teaching tool, learning display, and collectibles, also will be a great addition to your lab supplies.