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

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.

These flange inserts fit multiple breast pump models and provide a more comfortable pumping experience. Available in various sizes, they help ensure proper fit, improved suction, and a better overall session. A useful and practical accessory for nursing moms.

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

Quality is great

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.

I love these inserts, there a several different sizes and 2 of each size. I was able to find the correct sizes for myself and they fit perfectly in the different pumps I have. However, you need to use a 24 size flange for them to fit properly. They are too small for a size 28 to fit.

The way these drastically changed my supply. Was having the hardest time emptying out until I read the size of these mattered. Had to guesstimate what size to get but GAME CHANGER once I figured it out!

I got the momcozy S12 pro through Aeroflow and as soon as I got it I realized I’d need a different size flange than what came with it. The Aeroflow website only allowed you to order individual sizes and I wasn’t 100% sure what size I’d need and I know they can change throughout the breastfeeding journey so I wanted to try and find a multi pack. Amazon to the rescue! These fit and work perfectly with the Momcozy s12 pro and it’s all of the sizes you could possibly need.