Authentic certified safety product. Our nipple shields are non-toxic, BPA Free, latex free, phthalate free, lead free, and worry free, Provides maximum breast and nipple comfort for breastfeeding mothers and easier breastfeeding for babies. nipple shields had a special butterfly-shaped design that allowed mothers to maximize skin contact with their infants during breast-feeding. And It can also prevented the baby's nose from colliding with the nipple shield during feeding. Breastfeeding Helper Nipple Shields, Nipple shields can be used to flat, inverted nipples to promote breastfeeding. When breastfeeding, you may have nipple damage, dry nipples which will leads to breastfeeding pain, nipple shields can also relieve the pain of a ruptured nipple. Cleaning and care, Soak the hat in hot water for 10 minutes before first use. Clean breasts and fingers with wet cotton or wipes with food formula before breastfeeding. Wash the Nipple Shield warm after each use, store it in its packaging face up to keep it clean.