Food-grade silica gel materialThe pacifier corrector is made of food-grade silica gel material, which is soft, non-toxic, odorless and harmless to your skin. < p>Port invisible deviceAdjusting device with characters of invisible wearing and easy correction can be placed in the underwear so that others cannot see it from the surface. Easy to UseEasy to use, no need to use another auxiliary tool, gently press can make it suck firm, it won't fall off. Provides gentle and painless traction on inverted or flat nipples. Adjust the attractionPress the top to form a weak pressure and it is easier to wear. Press the top deeply to form a strong pressure and wear tightly. 'it is very comfortable. Lightweight and portable Lightweight, portable and can be used anytime.It can be used daily to care for your nipple without disturbing your work and study. Due to factors such as manual measurement and display differences, there may be slight differences between individual products and images, please excuse me.