6pcs Flange Insert 21mm, Compatible with TSRETE/Bellababy/Lansinoh/Medela/Spectra/momcozy S9/S12/S9pro/S12pro,Wearable Breast Pump Shields/Flanges.

I used it for my wearable pump and hand pump from lansinoh. Works well

I was so nervous to order these. From the photo I had no idea how it would fit on my momcozy. I ordered them anyways because the momcozy size I had was way too big and hardly got any milk.Getting the right size flange is a HUGE deal in pumping and helping you produce more milk. (Be sure to get measured at the hospital after baby and they'll help you get the right size!)But this product came in and is great quality. It was easy to assemble to my momcozy and was seamless (you can hardly notice I added them to the inside). They were the correct size for what I needed and helped create a stronger suction! The only downfall is it's one more thing to take off and remove but soooo worth it for having the right size flange.

These fit nicely in my portable breast pumps and does not cause issues with suction

I’m a breastfeeding/pumping momma who purchased a Momcozy pump and has a bit of elastic nipples. The size 24 flange I think runs a little big and it has a short “tunnel” so my nipple was getting pulled back far and getting pinched in the top while causing pain and loosing suction. I tried a Maymom insert and cut it to fit bit no luck. I tried the beaugen which worked a but was annoying. Sticky, never really adjusted to the correct size (always loose) and turned an ugly yellow color. I tried these and was worried they wouldn’t work because it covers the suction hole. But they worked! It covers the suction while but there is still room between the suction and the insert so it doesn’t effect output. I was so happy they worked I cried! This is the only insert that worked for me and my Momcozy pump. Saved my pumping journey especially now that I EP. In another review I saw that their insert stuck out a bit but mine goes all the way in. The first two weeks it’s snug and you have to gently push it in or even fold it a bit and flatten it out in the Momcozy pump. Over time it “molds” and slides in perfectly.

I have used these flanges in my Lansinoh Discreet Duo pump. At first, I thought they would not work because I had trouble inserting them. I had to fold the tube to insert it and then flatten it out. Otherwise, the rubber/silicone would not slide in smoothly. However, now that they are in, I like them a lot because of how soft the material is as opposed to other flanges.

I have three pumps I use, a manual pump, Elvie stride and momcozy v12. The inserts fit in all 3. They don’t slide off or feel uncomfortable. They are affordable but just like with all pump parts you should replace them every so often due to usage.

They definitely aren’t all fitted the same. Some fit in the 24mm flanges and others don’t. Overall they work but not every piece is cookie cutter

I’m on baby number four and never realize that I needed a smaller phalange size than what came with my pumps. After measuring and ordering these silicone inserts, my pump sessions are not only more comfortable, but I also am able to express more milk! They work with Medela, Spectra, and with an offbrand hands-free pump.