Momcozy S9 & S12 Pro Flange Insert, 17mm, 19mm, 21mm (1-Count)

For mamas who measure smaller than 24mm, can use the Momcozy Flange Insert for their S9 and S12 Pro breast pumps! This flange insert offers three different size (17, 19, and 21mm) to help you find your best fit. 

For Double Pumping, please order 2 flange inserts.