Advantages of humanoid model: 1 It can reflect the real curve of human body in correct proportion. 2. Compared with people of the same height, it is more intuitive and clear. 3. It is easy to shape into various postures and movements. 4. It is convenient to observe and study the structure and function of human body. 5. High dimensional accuracy of human body. 6. It will not be deformed or damaged due to collision in the manufacturing process. 7. Save materials. 8. Suitable for mass production. Disadvantages: 1 It is difficult to meet individual needs. 2. Generally, it is made of wood, gypsum and other materials, which is expensive. Advantages of Fit Model: 1. Easy to use, not affected by the weather, and can be displayed indoors and outdoors. 2. The price is low. 3. Any limb model can be customized according to customer requirements.