SAFE AND PREMIUM MATERIALS - Our thumb suckers are made of food grade silicone material, which is reliable and durable, can be used within a month, and is non-toxic to babies. There are no metal parts in the product to avoid accidental injury to the baby. The thumb guard is also firm enough to be soft enough to ensure that it won"t interfere with the growth of the baby teeth, but will break the thumb-biting habit. ERGONOMIC DESIGN FOR CHILDREN AND BABIES - This adjustable thumb-sucking kit is designed for older kids 3-36 months, a natural and comfortable way to break the thumb-sucking habit. The thumb stop is designed with an adjustable wrist strap, and tightening the wrist strap also ensures that the thumb cover does not come off too easily. REUSABLE AND DURABLE - If you"re wondering how to keep your thumb suckers clean and hygienic for the next use, you can sterilize your thumb protectors in boiling water. Our products are made of high-quality silicone that can withstand up to 180 degrees, ensuring that there are no harmful bacteria on the product. Thumb sucking plugs are recommended to be cleaned at least once a day. Effectively Break Bad Habits - It"s important to get your baby off the thumb-sucking habit, as it not only hurts the fingers but also affects the growth of the teeth. all Products From Us Have Undergone Strict Quality Checks. if There Is Any Quality Problem Or You Are Not Satisfied With The Product contact Us. we Will Give You The Best Solution.