1. Teething period: At what age can babies eat teethers? Babies in the teething period of 4-6 months can start using them. At this time, it is recommended to choose soft teethers that are ring-shaped, soft, and water-filled, which will not damage the gums during friction and affect the eruption of teeth.

2. Teething period: After the baby officially starts to grow teeth around 6 months old, you can choose teethers with both soft and hard toothbrush shapes and toy shapes, which are conducive to better massage of the gums; and the cute and interesting surface of the teether can also stimulate the baby's brain development during this period.

3. Canine period: Around 10-12 months, the baby's upper and lower four incisors and the surrounding canine teeth will gradually grow. As the baby's teeth gradually increase, teeth grinding will become more frequent. It is recommended to choose teethers with slightly hard and chewy shapes of fruits and vegetables, so that the baby can experience the feeling of biting and chewing.

4. Deciduous molar period: After 1 year old, it is the period when the baby's deciduous teeth grow deep in the teeth, the gums will be particularly swollen and painful, and the gums and gums are very fragile. For children aged 1-2 years, it is recommended to choose teethers that are long and have a strong hardness and can reach the big teeth.