Appearance: Tooth windup toys are usually small and delicate mechanical toys, similar in appearance to a human or animal mouth with gears and windup. They can have various designs, such as smiling faces, animals, cartoon characters, etc. They are very cute and interesting. Windup Machinery: The main feature of tooth windup toys is their windup machinery. When you turn the spring, the gears will start to rotate, and the mouth will open and bite. This mechanical design gives people a feeling of teeth moving, which is very interesting and eye-catching. Material and quality: Tooth winding toys are usually made of durable plastic materials, while high-quality toys usually use environmentally friendly and non fragile materials. These toys are usually carefully crafted and assembled to ensure their durability and ability to withstand the use of children. Power source: The power of the tooth winding toy comes from the winding machinery, without the need for batteries or power supply. Just rotate the spring a certain number of times, and the toy can automatically move for a period of time, bringing joy and surprise. Applicable age: Tooth winding toys are suitable for people of all ages to play with. For children, it can promote the development of hand eye coordination and fine motor skills. For adults, it can bring a sense of nostalgia and relaxation, and can also be placed as an accessory on a desk or room. Tooth winding toys are fun and mechanical toys that bring joy and surprise to people. It is not only a fun mechanical toy, but can also be given as a collectible or gift to others. Both children and adults can enjoy the fun brought by this interesting toy. Specification Material: Plastic Color: red, yellow, orange Size: 4 * 5cm/1.58 * 1.97in Package List: 1 * Wind up Teeth Toy