This model is great to serve for demonstration in mouth protection and relative clinical teaching. Consists of gum, teeth, tongue and palate. Top and bottom jaw connected with spring. Allows mouth model to be opened or closed in just about any position and stays in that position. It demonstrates teeth form and oral cavity cleaning and protection. 28 (Up 14 - Down 14)teeth mouth model with toothbrush. Tongue is also soft plastic and easily compresses with fingers or toothbrush.