Category: Backup Pump Parts
Willow Go's flanges come in 3 sizes so you can find your best fit. In addition, 24mm flanges are compatible with sizing inserts for mamas who measure smaller than 21mm.
The 24mm sizing inserts finally let me use my pump without pain since I measure under 21mm—total game changer. Having all three sizes in one pack means I can swap flanges as my breasts change through the day, and they click in securely every time.
I was nervous about getting the right fit, but the three size options made it easy to dial in what works. The 24mm set even leaves room for the smaller sizing inserts if I ever need them, which is a nice safety net.
The 24mm size fits my older pump perfectly and the material feels sturdy enough for daily use. I grabbed the 2-pack so I always have a clean one ready during those late-night sessions.
