The nipple puller aids in the removal of inverted nipples, making it easier for the baby to latch on. It gently pulls inverted or flat nipples out of the way, making it simpler for the baby's mouth to make contact and feed. It's made of 100% soft silicone and works without creating any discomfort. Nipples may remain protruding for several hours. Before feeding the infant, you may need to use the puller every time.