Flange Inserts 13/15/17/19/21mm 10PCS for Momcozy S9/S9pro/S10/S12/S12pro/Medela/Tsrete/Spectra/Bellababy etc 24mm Wearable Breast Pump, Reduce 24mm Tunnel Down to Correct Size - 10PCS

Works and fits great! Super nice to have different sizes to make sure I had the correct fit.

Great quality and easy to clean. Lasted the entire time I pumped so about 6 months. Helps you find your size and you have other sizes if your nipples change.

I'm so happy I went with this product it has multiple sizes for me and extra sizes too yayyy

Great fit for pump inserts

Bought for momcozy m5. Only issue I have is that the tube part is long and the only way to pour milk out is to remove the flange. Otherwise works great.

These flange inserts are a total game-changer for moms using wearable breast pumps! I struggled with the standard 24mm flanges being too large, which led to discomfort and reduced output. These inserts helped me size down to the perfect fit, making pumping so much more efficient and comfortable.Why I Love Them:✅ Great Compatibility – Works perfectly with my Momcozy S12 Pro, and I love that they’re designed for multiple pump brands.✅ Better Suction & Comfort – No more pain or discomfort! The proper fit has made a huge difference in my pumping sessions.✅ Easy to Clean & Durable – The silicone material is soft yet sturdy, easy to wash, and holds up well with frequent use.✅ Great Value – You get 10 inserts, so I always have extras on hand when I need to swap them out.If you’re struggling with flange fit and need to size down, these inserts are a must-have! Highly recommend for any pumping mama looking for a more comfortable and effective experience.

The universal flanges that come with the pumps don’t work for everyone. These flanges help tremendously.

I brought this kit not really knowing what size I needed, I was still trying to figure it out. I was working between 17mm & 19mm. While 17 gave me a good output, after a few uses it was leaving my nipples more sore than the actual pump. 19 gave me good output with a lot less pain. 17 was too small, 21 was too big and 19 is just right. Since getting this, I’ve went ahead and purchased the kit with 4 pairs of 19mm silicone flanges. Great purchase and I know the longevity is worth it.