The Medela Contact Nipple Shield in extra-small 16 mm is designed to help mothers and babies manage common breastfeeding challenges, including latch-on difficulties, flat or inverted nipples, soreness, and overactive letdown. Made of 100% ultra-thin, soft, pliable silicone, it features a unique cut-out shape that maximizes skin-to-skin contact between mother and baby to encourage bonding during feeds. All parts that contact breastmilk are made without BPA or DEHP. Medela recommends using nipple shields under the guidance of a physician, lactation consultant, or other healthcare professional to ensure proper fit and use.