Specially designed for breastfeeding: Contact nipple shields are designed to address common breastfeeding problems, including flat or inverted nipples, as well as difficulties with latching, pain and excessive secretion.INNOVATIVE DESIGN FOR MORE CONTACT: The nipple shields are made of 100% ultra-thin and soft silicone with a unique design and cutout area to promote maximum skin-to-skin contact between you and your baby.Use under the supervision of a healthcare professional: Medela's contact nipple shields should be used under the guidance and direction of a physician, lactation consultant or other healthcare professional to ensure proper use.EASY TO PORT: The kit includes (2) contact nipple shields and a portable carrying case for travel. It is best to have an extra nipple shield on hand for added convenience. Safe and odorless for your babyFor a better experience, please refer to the user manual and instruction manual