13mm Flange Insert Compatible with Elvie Stride, S18 S21 S23, Medela, for Spectra S1 S2, TSRETE, Momcozy S9 Pro S10 S12 Pro Wearable Pumps, Reduce 24mm Breast Pump Flanges Down to 13 mm, 2PC

These flange inserts are a lifesaver!! I started realizing my regular flange inserts weren’t working and my nipples were actually going past when they’re not supposed to! I ordered these flange inserts, got them the next day and holy moly! I’m getting more milk than I’m used to! These are wearable pump friendly!! I definitely recommend for elastic nipples! I included a photo comparison of these inserts (pink) and the ones that didn’t work with me (clear)

Should've read reviews before purchasing - these did not provide needed suction for the Elvie pump to work. Not a suitable replacement part - defective & useless.I agree with this other review 100%:"I bought this product trying to save a few dollars for my Elvie wearable breast pump and I might as well have thrown that money into the trash can. It’s not the same type of silicone as the name brand product and it doesn’t allow any suction while you’re trying to pump. In essence, it doesn’t let your pump work and so it’s absolutely pointless to use or purchase."

Compatible with Elvie stride! Material is high quality. Give them a try if you are uncertain.

Bought these for my Elvie and the duckbills worked great, however the other piece did not create a suction with my pump and had to go back to using the original valve that came with my pumps

I love these more than I thought I would. I bought these as replacements since you’re supposed to replace them every few months. I chose these for several reasons; the first being that they’re cheaper than the elvie ones, and second because they were pink so I could keep track by color which ones I had replaced most recently.They’re great and I think they increased the suction of my pump. Not just because they’re newer, I also was given a brand new set of the elvie brand diaphragms shortly after I got these and I feel like these work better!! I’ve had no issues with leaking and my brand new elvie brand diaphragms leaked. So I’m sold on these!! I just wish they came in different colors so I could replace a few at a time and keep track of which had been replaced.Overall great value and I’m definitely going to order more!

While this looks like the parts for the Elvie, for whatever reason it did not create suction. I was not able to breast pump with these. It's thicker than the elvie parts and can't create suction. Like that they were pink but that's all.

I like the soft texture of these, but I like being able to see inside my flange. I wish they were clear instead of pink.

Great product for the elvie stride pump! I couldn’t use it without these!