







👩🍼 Unlock the perfect pump fit—comfort and efficiency in every drop!
Luxemum flange inserts offer five precise size options (13, 15, 17, 19, 21mm) to customize 24mm breast pump flanges from leading brands. Crafted from BPA-free, food-grade silicone, these inserts enhance comfort and pumping efficiency by adapting to nipple size changes. Easy to clean and sterilize, they promote hygiene and are recommended for replacement every 1-2 months to ensure optimal performance.






















| ASIN | B0FMR2776F |
| ASIN | B0FMR2776F |
| Best Sellers Rank | 2,375 in Baby Products ( See Top 100 in Baby Products ) 41 in Breast Pumps & Accessories |
| Brand | Luxemum |
| Country of origin | China |
| Country of origin | China |
| Customer Reviews | 4.7 4.7 out of 5 stars (238) |
| Customer reviews | 4.7 4.7 out of 5 stars (238) |
| Date First Available | 18 Aug. 2025 |
| Item model number | 1 |
| Manufacturer | Luxemum |
| Package Dimensions | 21.3 x 11.3 x 3.7 cm; 170 g |
| Units | 1 count |
W**A
Does the job
Cheap product, does its job. Came quickly and its soft rubber so it doesn’t irritate skin while measuring.
A**R
An excellent measuring tool
I purchased the Nipple Rulers for my wife, and it turned out to be an excellent measuring tool. It provided clear and precise sizing, ensuring a proper fit for her breast pump flanges. This has significantly enhanced her pumping efficiency and comfort. I highly recommend it.
S**.
Does the job
I have previously exclusively breast fed through pumping and struggled with a supply issue for the entire 6 months. Both lactation consultants and feeding specialists through NHS services told me a 24mm flange was the correct size (my 1st and 2nd were 7&5 yes ago). Ordered one of these only to find that I should be using a 17mm flange which explains many of the issues I had previously had. What a useful item. I wish these were around during my previous pumping journey. I paid £3.99 which I feel is value for money.
B**Y
Does the job well
Really happy I got this as I used to be a confused new mum when it comes to knowing my flange size but this came in really handy plus it is silicone too so gentle on skin.
A**R
Good sizing
The flange inserts have a little measuring scale which helps with picking the right size for the breast. It fits the Momcozy breast pump and has improved using that pump with the right flange size for my daughter
C**E
A must have for pumping mums
A must have for any mum looking to use a breast pump!
T**S
Good
As described
N**N
A must for mums
If you are wanting to use a breast pump, finding the right size flange is a must. Most pumps come with 21/24 mm sizes. And most women are not these sizes, milk supply can really suffer with the wrong size. Really good price considering it’s really only a 1/2 time use but wouldn’t want to spend anymore. I’ll probably pass on to a friend.
L**T
Easy to measure and fits well in my momcozy pumps
K**I
The flanges fit perfectly into my lansinoh duo. I'm extremely greatful to finally have some flanges that fit and they were much cheaper than if I bought them from lansinoh. I also liked hoe i could try multiple different sizes. I appreciate the sizing chart too. I found out the nurse at my hospital had measured me wrong and that is why all the flanges I kept trying were too big.
R**E
The pump I got through my insurance has only 24mm flanges and the extras were expensive and I honestly didn't even know what size I needed. I just knew they didn't fit and they really hurt me. I was barely getting one to one and half ounces each pump too. I took a chance on these, I got the sizing tool too. One of my girls is a 20mm the other is a 19. There's a considerable size difference with them but I try to remember they're sisters, not twins. I put the 21mm flange insert in my existing flanges and the very first pump I did, I produced 3.5 ounces. First time ever in my entire pumping experience with two babies have I ever got this much. There was no pain during pumping either. The only con I can say about them is when you take them off after you're done, the suction is a little pinchy right where the edge of the insert is. They're super flexible though and do provide a little bit of cushion against the hard plastic flange. I'd buy these again, I'm so happy with my purchase. They're real affordable and for the price I didn't know what to expect. I was just desperate to try anything. Buy them!!!
C**J
This is a perfect kit for first time moms or first time pumpers. It comes with the sizing guide and you have multiple sizes to try should they be needed, without having to spend extra money on purchasing single flanges.
I**A
The set is complete, feels soft and easy to use
Trustpilot
2 weeks ago
1 week ago