Flange Sizing Kit 3 in 1 with 10PCS Flange Inserts 13/15/17/19/21mm, Silicone Breast Pump Flanges Insert Kit for 24mm Electric Breast Pump, Pumping Breastfeeding Essentials Kit for New Mom
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To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.
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Availability:
Only 5 left in stock, order soon!
Arrives
Monday, Jan 12
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Size: 10PCS 13/15/17/19/21mm
Color: Pink
Features
- Essential for New Moms: Nursi Luna Flange Sizing Kit 3 in 1, developed by an IBCLC (International Board Certified Lactation Consultant), enhances comfort and pumping efficiency for new moms, addressing common confusion and discomfort during breastfeeding.
- Highly Compatible: 10Pcs Flange sizing kit come in a variety of sizes to choose from 13/15/17/19/21mm (2 flange inserts of each size) Fits most pumps with 24mm flanges/shields. Note: Not compatible with 27-28mm shields
- Getting The Right Flange Size: Nipple size can change during different breastfeeding stages, requiring adjustments for optimal comfort. Our nipple ruler based on IBCLC recommendations, provides precise sizing to ensure a perfect fit and efficient pumping
- Safe For Baby And Mom: Made from food-grade silicone, BPA-free, easy to clean, and dishwasher safe. Includes a sponge cleaning brush. Replace breast pump flange insert every 2 months for optimal performance
- Perfect Gift for New Moms: Our silicone flange inserts help mothers quickly and comfortably find the right size, ensuring a smooth pumping experience. They also enhance safety and maximize the performance of the breast pump
Brand: Nursi Luna
Flange Diameter: 13 Millimeters
Special Feature: Lightweight
Material: Silicone
Included Components: 13/15/17/19/21mm Flange Inserts * 2PCS, Cleaning Brush, Nipple Ruler Pink * 1PCS
Product Dimensions : 1 x 1 x 1 inches; 4.94 ounces
Item model number : FSK-FCS-01
Date First Available : March 28, 2024
Manufacturer : Nursi Luna
Best Sellers Rank: #325 in Baby (See Top 100 in Baby) #15 in Breastfeeding Supplies
#15 in Breastfeeding Supplies:
Customer Reviews: 4.6 4.6 out of 5 stars 1,140 ratings
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Monday, Jan 12
Yes, absolutely! You may return this product for a full refund within 90 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Similar Products
Top Amazon Reviews
Size: 10PCS 13/15/17/19/21mm
Color: Pink
This is my sixth baby and somehow the first time I’ve ever measured myself for pumping. I really wish I had done it sooner. The sizing tool is super simple to use and gave me a clear answer on what I needed. The set itself feels like a great value, especially with all the extra inserts included. If you’re pumping and not sure about fit, just get this. It makes a big difference in comfort and output.
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Reviewed in the United States on July 6, 2025 by Jacqui
Size: 10PCS 13/15/17/19/21mm
Color: Pink
If you are a mom who pumps but are struggling with supply, pain or fit- BUY THESE. This has been a game changer. It comes with a flange measurement tool to ensure you are using the proper size. This comes with several sizes so you can see what works best for you. The flexible pieces fit right into your pump shield. Easy to use!
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Reviewed in the United States on July 7, 2025 by Amazon Customer
Size: 10PCS 13/15/17/19/21mm
Color: Pink
There are so many size options in this kit! Not to mention the card that helps you measure and learn how to measure if you’ve never done it before. There are a few flanges to choose from that will suit your size and if not you at least have the measuring tools to order your specific size as everyone is different!
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Reviewed in the United States on July 8, 2025 by Mikayla Taylor
Size: 10PCS 13/15/17/19/21mm
Color: Pink
I wish I wouldn’t have waited so long to get this. Having the proper flange inserts in my pump has greatly increased my comfort while pumping, reduced trauma, and increased the ease of milk output. The measuring tool comes with easy instructions, and the silicone inserts are marked on the sides with which size they are. The inserts fit in the standard 24mm flanges that come with pumps. I do find it takes a little scooting and work to put the inserts in, but they stay firmly secured while pumping. I subtracted one star because one of the silicone inserts has a very small tear at the bottom after a few weeks of use. I’m watching it carefully because I don’t want pieces to tear off, but so far it seems fine and doesn’t affect the function of the insert.
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Reviewed in the United States on January 18, 2025 by B
Size: 10PCS 13/15/17/19/21mm
Color: Pink
I was really impressed with these flanges! They came in a bunch of different sizes, which made it easy to find the perfect fit. I also appreciated that they included a measuring tool to help figure out which size I needed—super helpful for someone unsure where to start. Plus, the cleaning brush was a thoughtful addition and made cleanup simple. Overall, great quality and a very convenient set!
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Reviewed in the United States on May 28, 2025 by Esther White
Size: 10PCS 13/15/17/19/21mm
Color: Pink
I was feeling overwhelmed by the bf journey and learning i needed to be sized was just another thing to add on the stress so it was nice being able to do it at home! The sizing tool is soft and flexible and it comes with a small variety of options for you to try. It also came with a small sponge for cleaning (although i just use the bottle brushes instead)
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Reviewed in the United States on July 4, 2025 by Cameron S.
Size: 10PCS 13/15/17/19/21mm
Color: Pink
Absolutely changed the way I was pumping! If I could have put one thing on my registry for personal items, I would have added this. The flanges made such a huge difference in the way I was pumping. All the flanges are super soft and fit right into the breast pump. I personally used the spectra 2 and had no issues with it. It comes with a convenient little brush to clean them after use. The sizer that comes with it as well is easy to use to know what is the right size for you. Each baggie is also labeled as well so there’s no confusion which helped a lot and there’s many different sizes.
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Reviewed in the United States on May 10, 2025 by jennifer
Size: 10PCS 13/15/17/19/21mm
Color: Pink
The measuring piece was great! Helped me find my right size. The inserts didn’t fit super well into the existing flange and hurt my breast when pumping. Ended up just getting a flange in my correct size and it works great!
Reviewed in the United States on June 9, 2025 by Amazon Customer