The food grade silicone material straw is made of food grade silicone, which is soft, non-toxic, odorless, and skin friendly.The easy to use inverted nipple extractor is easy to use and does not require other auxiliary tools. It can be gently pressed and tightly sucked without falling off.How to adjust attractiveness by using a nipple extractor for inverted nipple expansion. The top is suitable for weak pressure and is easier to wear. Press the top deeply to gain strong pressure and wear it tightly. You can adjust the attractiveness so that it is very comfortable when you use it.Suitable for nipple correction devices in pregnant women, suitable for nipple retraction surgery in pregnancy and postpartum women. When you use it, you will feel comfortable. Give the mother the best experience and the baby the best experience. Cover small, flat, or inverted nipples with nipple suction cups. The nipple is pulled out by pressure and formed into a shape suitable for breastfeeding.