Most of baby teether are made of safe and non-toxic food grade silicone material, some of which are made of soft plastic, and have many designs such as fruit, animal, nipple, cartoon characters, etc. It has the function of massage gum. Through sucking and biting gum, it can promote the coordination of the baby’s eyes and hands, thus promoting the development of intelligence. Theoretically, when a baby is unhappy with frustration, tired and sleepy or lonely, he can obtain psychological satisfaction and safety by sucking the pacifier and dental gum. Baby teether is suitable for long tooth phase from 6 months to 2 years old.