Willow Sizing Insert Set (2-pack)

These inserts are a lifesaver for my smaller flange size. They fit snugly into the pump parts and make every session noticeably more comfortable. I've been using them for two weeks and my pumping output actually feels more consistent, too.

These inserts finally made pumping bearable for me; the smaller flange size means no more chafing or that awful tugging sensation. Having the two-pack is a lifesaver when one needs washing mid-day.

I was worried the standard flange would be too big, but these inserts fit snugly and create a perfect seal. Pumping is much more comfortable now, and the set of two is a nice bonus.