Momcozy Flange Insert 21mm Compatible with Momcozy S9/S10/S12 Wearable Breastpump. Made by Momcozy. Wearable Breast Pump Shield/Flange Insert. Momcozy Pump S9/S10/S12 Parts Replace - 21mm

Why choose Momcozy Wearable Breast Pump flange insert ?The Momcozy flange insert is designed for use with the Momcozy S9/S10/S12 wearable breast pumps. Sometimes it can be difficult to know which size flange insert you are. 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, ...