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📏 Pump smarter, not harder — because comfort is the new power move!
The Nursi Luna Flange Sizing Kit offers 10 BPA-free silicone inserts in 5 sizes (13-21mm) to customize 24mm breast pump flanges for a more comfortable, efficient pumping experience. Developed by a certified lactation consultant, it includes a measuring ruler and cleaning brush, is dishwasher safe, and supports moms adapting to changing needs with reusable, hygienic components.






| ASIN | B0CY81WHD5 |
| Best Sellers Rank | 1,468 in Baby Products ( See Top 100 in Baby Products ) 17 in Breast Pumps & Accessories |
| Brand | Nursi Luna |
| Brand Name | Nursi Luna |
| Capacity | 13 millimetres, 15 millimetres, 17 millimetres, 19 millimetres, 21 millimetres |
| Colour | Pink |
| Country Of Origin | China |
| Customer Reviews | 4.6 out of 5 stars 1,899 Reviews |
| Included Components | 13/15/17/19/21mm Flange Inserts * 2PCS, Cleaning Brush, Nipple Ruler Pink * 1PCS |
| Included components | 13/15/17/19/21mm Flange Inserts * 2PCS, Cleaning Brush, Nipple Ruler Pink * 1PCS |
| Is the item dishwasher safe? | Yes |
| Item Weight | 0.14 Kilograms |
| Manufacturer | Nursi Luna |
| Manufacturer Part Number | FSK-FCS-01 |
| Material | Silicone |
| Material Type | Silicone |
| Model Name | FLANGEKIT |
| Model Number | FSK-FCS-01 |
| Number of Items | 1 |
| Number of items | 1 |
| Power Source | Battery Powered |
| Power source | Battery Powered |
| Size | 10PCS 13/15/17/19/21mm |
| Special Features | Better Fit, Comfort and Efficiency, Lightweight, Painless |
| Special feature | Better Fit, Comfort and Efficiency, Lightweight, Painless |
| Unit Count | 1 count |
P**T
Amazing
After using the wrong flang size and wondering why pumping was causing pain this was a life saver. The measurements are spot on and the adjusters fitted right into my current pump. Huge difference in comfort and milk output.
A**Y
Does the job
These breast pump flanges have been good so far. They fit comfortably and make pumping easier. The sizing is helpful to make sure the flange is the right size
A**R
Flange
Good set! Helpful sizer.
L**N
A necessity for pumping mums!
Would recommend to anyone pumping, standard flanges on breast pumps are way too big and stopped me from pumping. Would have pumped more if I'd had these from the beginning. The nipple measurement guide really helps with gauging size. Easy to clean, I washed with hot soapy water and threw in the steriliser.
J**E
Improve breast pump output
These certainly helped up the amount of milk extracted each pumping session. The flange size makes a difference to comfort too. My wife made plenty of use of the size that she found to be right for her. This set included every thing needed to correctly size.
C**Y
Not compatible
Not compatible with Medela pump.
R**.
Must have
Must have for comfortable pumping experience
B**A
Very well organized nipple sizing set
These work great. Not sure if it’s Increasing my milk, but it’s doing its job. It lets you know what size the nipple is as well with the measuring card. It fits into my medela hand pump.
T**S
So many sizes to try
Haven’t had the chance to try it yet, but I love that it comes with so many sizes. Finally feel like I’ll be able to find the right fit without all the guessing
M**A
Buen producto
Es súper variable y se adecuada a tu medida
N**G
Pumping mom life savers!!!
These saved me once I finally got them. I was pumping with the regular hard plastic flange with no inserts and these really do help especially because you really do have to pump over and over and over especially if your baby is like mine and doesn’t like the breast for whatever reason😭 would not recommend pumping without these if your pump is not already your size!!
C**B
Comfy
Sizing tool is helpful and the flanges are working well and are comfortable.
Trustpilot
2 weeks ago
2 weeks ago