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🍼 Pump smarter, not harder — comfort and efficiency in every drop!
The LOTBILL Flange Insert Kit offers 10 BPA-free silicone inserts in 5 sizes (13-21mm) designed to reduce 24mm breast pump flanges to the perfect fit. Compatible with major wearable pumps like Momcozy, Medela, Spectra, Willow, and Elvie, it includes a nipple measuring tool and cleaning brush for hygienic, efficient pumping. This kit enhances comfort, reduces nipple friction, and supports optimal milk expression, making it an essential upgrade for modern breastfeeding moms.












| ASIN | B0CL96VP1C |
| ASIN | B0CL96VP1C |
| Additional Features | Portable |
| Best Sellers Rank | #2,217 in Baby ( See Top 100 in Baby ) #26 in Electric Breast Pumps |
| Brand Name | LOTBILL |
| Color | Transparent |
| Customer Reviews | 4.5 4.5 out of 5 stars (500) |
| Date First Available | October 16, 2023 |
| Included Components | Cleaning Brush, Nipple Ruler |
| Is the item dishwasher safe? | Yes |
| Item Weight | 0.1 Kilograms |
| Item model number | FL-8910 |
| Manufacturer | LOTBILL |
| Manufacturer | LOTBILL |
| Manufacturer Part Number | FL-8910 |
| Material Type | Silicone |
| Model Number | FL-8910 |
| Number of Items | 10 |
| Product Dimensions | 3.4 x 4.8 x 1.4 inches; 3.53 ounces |
| Size | 10pcs-13/15/17/19/21mm |
| UPC | 726172399673 |
| Unit Count | 10 Count |
V**R
Inexpensive and efficient
I've used these with multiple different pumps. Very versatile and works as expected. Included sizing tool was extremely helpful in determining size needed
A**R
Worth the purchase
Excellent quality and great fit for my portable pump. Increase my milk supply due to having improper fitting when pumping.
C**N
Very useful
Very easy to use and find the perfect fit for pumping needs. Took the discomfort away from both electric and manual pump!
T**O
Works
Very convenient for pumping, down side would be that they feel just a tad loose when inserted but they get the job done
A**N
Great!
Absolutely perfect fits in my hands free pump and my speCtra pump plus came with a hand scrubby for them can’t bet it for 8 bucks!
R**S
I love this
Absolutely amazing, any first time pumping mom I highly recommend!
S**R
Missing two sizes
Received today. Well made product but it came missing the 13mm and 15mm inserts.
H**Y
Work Great
Super easy to use to measure your nipples. They don't work on all wearable pumps, but work perfect on the Spectra S2 and Sagive wearables. Make pumping easier.
Trustpilot
1 month ago
2 days ago