Philips Avent Soothie Heart is from the pacifier brand distributed in hospitals nationwide, used by doctors & nurses to soothe newborns. Its one piece construction is specially sized and shaped for babies 0-3 months old and adheres to the American Academy of Pediatrics guidelines. Soothie Heart is designed to calm and soothe without inhibiting normal oral development, like the natural development of teeth and gums. It has a heart-shaped, curved shield for more comfort. Transparent, tasteless and odorless, the nipple is strong and smooth. It won't become sticky, discolored or misshapen. It's also compatible with most pacifier clips. Soothie Heart is made of hospital-grade, BPA-free and latex-free silicone for strength, comfort and durability. It is dishwasher safe and can be sterilized in a sterilizer.