Kikka Boos orthodontic pacifiers have a silicone nipple, a heart-shaped protective shield, holes that prevent moisture from accumulating on the skin, and are made without BPA. Features Heart-shaped shield that fits perfectly under the babys nose and does not obstruct their breathing. Two ventilation holes prevent irritation of babys sensitive skin. Dust cover for easy storage. Suitable for children from 0 to 6 months. Made of high quality materials, polypropylene and silicone. BPA-free.