Momcozy Flange Insert 21mm Compatible with 24mm Flange/Shield of Most Pumps, Breast Pump Replacement Accessories Insert, 4pcs 21mm

They fit perfectly into the momcozy pumps since that’s what they were designed for. It also works with the spectra flanges. It’s quite fiddly to get them in since they’re not exactly the same size. You have to really smoosh and massage it in - but it does go in to the spectra flanges and works great once it’s in

Made all the difference in the world. So much of breastfeeding is a new experience, I didn't know the difference the insert would make. My pump wasn't pulling any milk at first, but with the insert I had no problems. Easy to clean. Make sure to measure to get the correct size.

Falange sizes super important especially if your looking for great milk out put. I used the bigger sizes if didn’t work until I measured and actually my size was 21 mm so I think I recommend you buy your correct Falange size. This fits my momcozy s12 pro and I also believe it’ll fit momcozy s9. These are also comfy when it’s your correct size. It won’t be as painful. I recommend.

I've used these flanges every day for at least the last 6 months. They're still holding their shape and look like new. The plastic is soft and I dont even notice them in my spectra flanges. Have also used them in the new Willow handheld pump and they work good there as well.

I purchased these to fit into my spectra pump in order to see if I could have a more comfortable pumping journey. These are easy to clean and very flexible. I have found they modify the flange to make my pumping journey a little less painful. They are a little tough to get fit into the flange just because of how flexible they are, so the opening can be tough to get situated flush with the flange. However, if they aren’t all the way pressed against the opening, they still work. They stay in place once they’re put into the flange.