Flange Inserts 13/15/17/19/21mm 10PC Compatible with Momcozy S12 pro/S9 pro/S9/S10/S12/Medela/TSRETE/Spectra/Bellababy etc 24mm Wearable Breast Pump, Reduce 24mm Tunnel Down to Correct Size

Works great with my momcozy s12! Allows customization on sizing! Does not seem to affect suction!

They work with many types of 24mm flanges; I've used them with the regular spectra, the wearable spectra, the baby buddha, and the manual medela. Easy to clean, but sometimes can keep a residue from whatever you use for a pumping cream (it's probably because I use regular coconut oil), but very easy to rinse or clean the residue off. I use these daily since buying them, I highly recommend them for people looking for a cheap and functional set of flange inserts. Also, they're both dishwasher safe and sterilizing steam safe.

worked amazing!!!

The pros is that there are 5 different sizes to choose from. So you can measure and see what fits best, but then the negative is that you could have to buy a secondary set to use them on both sides.... I found I could use size 17mm and 19mm without having to buy another set! Hopefully that helps someone else who is cost conscious.

I had a feeling I had the wrong flange size but I didn't want to have to buy so many spectra pump parts. I saw a post on social media about flange inserts and after a search, I came across these. I tried as small as I could go and felt a little pain so I knew I had to go up a couple sizes. The flexibility of being able to try a size multiple times until you get a feel for it is so practical. I wish I knew about these sooner!

Yeah it’s a good product, I just wish I read the specifications a little better. Because of one of the pictures I thought I was getting 2 of each size since it showed each size x 2 so I was under the impression I would get two of each. Now I need to buy a whole new pack because I need another size 17mm 🤦🏻‍♀️ smh

Didn’t know I was using the wrong phalange size until just recently. The sizes in this package were a life savor!

They work but I think they are too hard/stiff and cause milk to get stuck in the pump and spill out back on you or on the counter when you’re pouring it out