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Nursi Luna

Nursi Luna Flange Sizing Kit, Flange Inserts for 24mm Breast Pumps, 10PCS | 13/15/17/19/21mm, Includes Nipple Sizer for Flanges to Find the Right Fit, Soft Silicone for Comfortable & Efficient Pumping

  • Based on 2,152 reviews
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Availability: Only 5 left in stock, order soon!
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Arrives Saturday, Aug 8
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Size: 10 PCS 13/15/17/19/21 mm for 24 mm shields


Features

  • Essential Breastfeeding Support for Moms: More than just an accessorythis nipple flange sizing kit is part of your true breastfeeding essentials. Correct sizing reduces discomfort, supports healthy pumping, and makes each session more effective for both new and experienced moms
  • Customized Comfort with Multiple Sizes: Every mom is unique. This flange sizing kit includes 10 soft silicone flange inserts (13/15/17/19/21mm), allowing you to find the right fit for each side. A proper fit ensures a secure seal, better suction, and a cozier pumping experiencean important piece of your breast feeding essentials
  • Easy Measuring with Nipple Ruler: No more guessing sizes. The included nipple measurement tool makes it simple to identify your correct fit, helping moms choose the right flange insert quickly and confidently
  • Safe and Gentle: Made from BPA-free, food-grade silicone, these flanges are soft, cushioned, and gentle on sensitive skin while supporting efficient milk flow. Theyre easy to clean and maintain, with an included sponge brush for added convenience
  • Easy to Clean and Durable: Made for busy breastfeeding mothers, these silicone flange inserts are easy to clean and maintain. They can be sanitized with boiling water, ensuring that the accessories remain hygienic and durable

Description

Place the bottom of the nipple perpendicular to the ruler or nipple measure tool card. Use a size chart for guidance on the proper size for the fit. If your nipple rubs or feels squeezed in the flange channel, it is an unsuitable flange size and you need to replace the right size flange/insert. 4 in 1 Flange Sizing Kit 3 in 1 Flange Sizing Kit Flange Sizing Kit Colostrum Collector Kit 150 Bottle Washer Tablets Breastfeeding Essentials Nipple Measurement Tool Nursi Luna understands the challenges mothers face. We're committed to enhancing every mother's breastfeeding experience with products that redefine comfort and quality, ensuring support, confidence, and comfort throughout. Join us to discover how our products can change your life, experiencing the difference in every detail.

Product Dimensions ‏ : ‎ 1 x 1 x 1 inches; 4.23 ounces


Item model number ‏ : ‎ FL-001


Date First Available ‏ : ‎ November 30, 2023


Manufacturer ‏ : ‎ Nursi Luna


Best Sellers Rank: #795 in Baby (See Top 100 in Baby) #4 in Electric Breast Pumps


#4 in Electric Breast Pumps:


Customer Reviews: 4.6 4.6 out of 5 stars (2,152)


Brand Name: Nursi Luna


Included Components: 13mm Flange Inserts * 2PCS, 15mm Flange Inserts * 2PCS, 17mm Flange Inserts * 2PCS, 19mm Flange Inserts * 2PCS, 21mm Flange Inserts * 2PCS


Number of Items: 1


Model Name: FLANGEKIT


Unit Count: 1 Count


Manufacturer: Nursi Luna


Model Number: FL-001


Manufacturer Part Number: FL-001


Operation Mode: Manual


Additional Features: Better Fit, Comfort and Efficiency, Lightweight, Painless


Item Weight: 0.12 kg


Size: 10 PCS 13/15/17/19/21 mm for 24 mm shields


Material Type: Silicone


Color: Transparent


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Saturday, Aug 8

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.

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Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Similar Products

Top Amazon Reviews

    • Good Quality and Fit All My Pumps!
Size: 10 PCS 13/15/17/19/21 mm for 24 mm shields
I love this kit!! My flange size has changed a couple times throughout my breastfeeding journey and this kit has all the sizes I have needed. The flanges are great quality and have fit in my spectra, baby buddah 2.0, and momcozy s12. Would highly recommend!
Reviewed in the United States on July 23, 2026 by EmmaLeigh
    • Great kit! Helped me find my perfect size
Size: 10 PCS 13/15/17/19/21 mm for 24 mm shields
Review Image by Nancy
Review Image by Nancy
This was a very good purchase! It includes exactly what is shown in the picture, and it comes with 2 of each insert size. The sizing tool was incredibly helpful in finding the perfect size for me. I also love that it includes a brush to wash everything. Highly recommend for new moms!
Reviewed in the United States on June 13, 2026 by Nancy
    • Excellent Fit, Better Results!
Size: 10 PCS 13/15/17/19/21 mm for 24 mm shields
These are amazing! My supply has went up tremendously using the correct size flange!
Reviewed in the United States on July 3, 2026 by DesGia
    • Good Product
Size: 10 PCS 13/15/17/19/21 mm for 24 mm shields
Very useful. I love the measuring piece, perfect way to make sure I'm using the correct flange size. No more uncomfortable pumping.
Reviewed in the United States on July 22, 2026 by Rosà S. Ana'El
    • Essential for Comfortable Pumping
Size: 10 PCS 13/15/17/19/21 mm for 24 mm shields
I purchased the Nursi Luna Flange Inserts to find the right fit for my breast pump, and they have been incredibly helpful. The kit includes 10 silicone inserts in sizes 13mm, 15mm, 17mm, 19mm, and 21mm, making it easy to determine the best size for comfort and efficiency. The soft silicone material is gentle on the skin, and the inserts are compatible with most 24mm flanges, such as those from Spectra and Momcozy pumps. The included nipple ruler and cleaning brush are thoughtful additions that enhance the overall value of the kit. Many users have reported improved comfort and milk output after using these inserts, as they help achieve a better seal and reduce discomfort during pumping sessions. However, some users have noted that the smallest size, 13mm, may still be too large for those with smaller nipples. Additionally, while the inserts are dishwasher safe, some users have mentioned that the markings on the sides can be difficult to read over time. Despite these minor drawbacks, the overall quality and functionality make this kit a worthwhile investment for breastfeeding mothers seeking a more comfortable pumping experience. ... show more
Reviewed in the United States on April 17, 2025 by Damankaur
    • if you’re considering pumping, buy this kit
Size: 10 PCS 13/15/17/19/21 mm for 24 mm shields
so worth it. fits for my spectra & lansinoh pumps. nice having multiple sizes at once because your nipple size can change thru your breast feeding journey
Reviewed in the United States on July 27, 2026 by Natalie McGahan
    • Easy to use, good variety
Size: 10 PCS 13/15/17/19/21 mm for 24 mm shields
Easy to use and worked well, nice to have all sizes available as shape and size can change often if pumping
Reviewed in the United States on July 22, 2026 by KB
    • Very helpful
Size: 10 PCS 13/15/17/19/21 mm for 24 mm shields
This was very helpful with measuring. It made it so easy to figure out what size was needed and having the options ready to go on hand has been helpful. Breastfeeding and pumping can change your nipple size throughout your journey so it’s helpful to have many sizes on hand that can keep the journey a good one! ... show more
Reviewed in the United States on July 25, 2026 by The Langeneggers

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