Enable breastfeeding when latching on is difficult or painful or if you have flat or inverted nipples. Protect sensitive, dry of cracked nipples during breastfeeding. Made from transparent, ultra-thin soft silicone that’s comfortable on sensitive skin. Safe and taste-free for your baby. Shape maximises skin contact between you and your baby. BPA free.Medela nipple shields come with a handy box for storing and carrying them in. Available in three sizes: S/16 mm, M/20 mm or L/24 mm.