Bebecom Thumb Shaped Pacifier With Chain keeps your baby occupied and pleased during playtime with this lovely pacifier. Sucking is a natural reflex in infants and they often begin to suck on their thumbs or other fingers while they are in the womb. Sucking on thumbs, fingers, pacifiers or other objects creates a sense of security for infants and children and often experts refer to pacifiers as transitional objects- that is, something that relieves stress and helps your child adjust to new or challenging situations. Bebecom Thumb Shaped Pacifier is specially designed to gently expand across the roof of the mouth to support the natural shape of the palate and healthy oral development. Designed to resemble a thumb to keep your teething baby occupied, this pacifier also showcases a striped strap that can be attached to prevent dirt contamination if the pacifier falls from the baby’s mouth. When baby is sucking, the inside of pacifier forms to vacuum state to make pacifier closely attached the mouth, to promotes nose breathing freely. The total set is made of imported food class and non-toxic material. The printing oil is also lead free and safe. The product design is based on the rationality of human engineering which cares the development of babies' moth cavity and teeth. The super simulation texture teat offers the baby most satisfied pacificating feeling.