17mm, 19mm, 21mm Flange Insert
This flange inserts will work on most flanges: Spectra or Freemie handsfree, Spectra Flanges, Medela, Avent, Minuet, Wisemom, Doopser and most flanges.
It will reduce the nipple tunnel of your current flange to the size you have chosen. Great solution for small-nippled mothers .
Made of BPA-free silicone and package comes in pair already (2 pcs).