Philips AVENT SCF178/23 Freeflow Pacifiers offer a durable soothing solution for infants up to 6 months old. The 6 holes in the curved shield promote extra airflow for less skin irritation and greater comfort. The orthodontic, collapsible and symmetrical nipples respect the natural development of baby's palate, teeth and gums. Each pacifier comes with a snap-on hygienic cap. All Philips AVENT pacifiers are made of silicone and are taste and odor-free. The silicone is smooth, transparent, easy to clean and doesn't get sticky. The nipple is strong, long-lasting and won't become misshapen or discolored over time. Can be sterilized using a Philips AVENT sterilizer and is dishwasher safe.