This product is suitable for 1-5 year old children with a tendency to suck on their thumb.To fit thumb diameter of not more than 18mm, in conjunction with the width of the wrist.Features:Rest assured material - We are serious about the baby's sake. This baby finger cot is made of food-grade silicone, which can be safely used by the baby.Product use-It can help babies say goodbye to the bad habit of biting their hands and protect their fingers from harm. Just adjust the size to use the thumb, index finger, and middle finger, no matter which finger the baby likes to suck onPortable design --- The teething toy is small and compact, which is convenient for us to carry with us. When the baby starts to focus on sucking the finger, we can use it for the baby anytime and anywhereSpecifications:Non toxicDevice made of silicone.Material : SiliconeColor : TransparentTightening belt Sizes : 200x12mm(7.78''x0.47'')Body Sizes : 145x15mm(5.70''x0.59'')Finger diameter : 18mm(0.70'') What's in the box1 x Silicone Sucking Guard Protector

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