






🍼 Perfect fit, effortless comfort — because every drop counts!
The Willow Breast Pump Sizing Insert in 19mm is a reusable, BPA-free silicone flange insert designed to improve fit and comfort for moms with smaller nipples. Compatible with 24mm Willow breast pump flanges, it enhances pumping efficiency and is dishwasher safe for easy cleaning. Trusted by over 300,000 moms, it’s recommended to replace every 3 months for optimal performance.















| ASIN | B09B7WMGGQ |
| ASIN | B09B7WMGGQ |
| Additional Features | Reusable |
| Best Sellers Rank | #2,251 in Baby ( See Top 100 in Baby ) #37 in Electric Breast Pumps |
| Brand Name | Willow |
| Color | Clear |
| Customer Reviews | 4.7 4.7 out of 5 stars (1,478) |
| Date First Available | July 28, 2021 |
| Included Components | Breast Flange |
| Is the item dishwasher safe? | No |
| Item model number | INSERT |
| Manufacturer | Willow |
| Manufacturer | Willow |
| Material Type | Silicone |
| Number of Items | 1 |
| Product Dimensions | 5 x 1.5 x 5.7 inches; 0.32 ounces |
| Size | 19MM |
| UPC | 858298006613 |
| Unit Count | 2.0 Count |
C**E
love it
very well made, and exact fit, also comfortable and easy to wash
K**M
Comfortable
These work great with my Willow Go’s and my other “wall pump.” Very comfortable fit.
J**R
Amazing!
Fit so nicely and comfortable
K**T
Soft, comfortable, and easy to use
Purchased these to go with my Willow Wave manual pump. The inserts are softer than I thought and fit in the Wave perfectly, making my pump much more effective and comfortable. I was sized by a lactation consultant and purchased the size she suggested. Easy to clean, insert and remove, highly recommend.
C**O
Great for elastic nips
These work great for eufy wearable pump if you have elastic nips!!!
J**8
So comfortable!
These are by far the most comfortable inserts I’ve used. The silicone is super soft so it doesn’t give that pinching feeling. They fit my spectra and eufy pumps perfectly and collection cups for the spectra as well.
A**R
Good flange inserts
Getting the correct flange insert is absolutely necessary when pumping. I got the Willow Go which comes with a standard 24mm flange. I use a 17mm so I could have bought a random one off Amazon but I wanted to make sure it was compatible with my pump so I just brought this brand. I do like the scalloped edges, it’s cute and adds a lil extra razzle dazzle to it. It fits perfectly in my pump. I did give 4 stars because of the price. $20 for these seems pricey and I’m sure I could have gotten other ones cheaper.
M**A
Comfy and efficient
Comfortable and helps my flanges maintain suction!! Highly recommend
Trustpilot
2 weeks ago
2 weeks ago