The Momcozy flange insert is designed for the Momcozy S9 Pro and S12 Pro wearable breast pumps. This flange inserts to compatible with Momcozy 24mm breast shields. It will reduce the 24mm flange nipple tunnel down to smaller size.
Your flange size has nothing to do with your breast size. The size of your nipples will determine your flange size. Some moms will experience nipple swelling while pumping, so it's important to observe how your nipples look during a pumping session. The size of your flange is important for comfort and efficient pumping.