willow
breast-pumps| Size | Base of Nipple Measurement |
|---|---|
| 21mm | 17-19 mm |
| 24mm | 20-22 mm |
| 27mm | 23-25 mm |
All Sizes in Inches Unless Otherwise Stated
Sponsored
Willow Breast Pump Sizing Insert
$15.99 was $19.89
New lower price
save $3.90 (20% reduction)In Stock
Eligible for registries and wish lists
At a glance
Sponsored
About this item
Highlights
- Sizing Inserts make pumping more comfortable for mothers with smaller flange sizes
- Improves fit and comfort for moms who need a flange size smaller than 21mm
- Flexible silicone material for a snug, secure fit
- Fits into 24mm Flanges (sold separately)
- Nipple Measurements: 11-13mm nipple use Insert Size 15mm; 13-15mm nipple use Insert Size 17mm; 15-17mm nipple use Insert Size 19mm
- Easy to assemble and clean, dishwasher safe
- Not made with BPA
Description
Willow Go Flange is compatible with Willow Go Wearable Double Electric Breast Pump. Using the correct size breast pump flange makes pumping more comfortable and more efficient. Available in 3 sizes so you can find your best fit. In addition, 24mm flanges are compatible with sizing inserts for mamas who measure smaller than 21mm.
Dimensions (Overall): 6.81 Inches (H) x 2 Inches (W) x 4.45 Inches (D)
Weight: 20 Grams
Features: Dishwasher-Safe
Package Quantity: 2
Industry or Government Certifications: FDA Approved
Compatible With: Willow Generation 3 Breast Pumps
Material: Silicone
Care & Cleaning: Dishwasher-Safe
Warranty: 90 Day Limited Warranty. To obtain a copy of the manufacturer's or supplier's warranty for this item prior to purchasing the item, please call Target Guest Services at 1-800-591-3869
TCIN: 85236125
UPC: 858298006606
Item Number (DPCI): 030-05-0502
Origin: Imported
If the item details aren’t accurate or complete, we want to know about it.
Shipping details
Estimated ship dimensions: 4.5 inches length x 3.7 inches width x 1.8 inches height
Estimated ship weight: 0.0441 pounds
Return details
This item can be returned to any Target store or Target.com.
This item must be returned within 90 days of the date it was purchased in store, shipped, delivered by a Shipt shopper, or made ready for pickup.
See the return policy for complete information.
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Guests are saying
Guests appreciate the comfort and fit of these inserts, noting their effectiveness in enhancing milk output during pumping sessions. Many find them easy to clean and adjust, making them a practical choice for varying nipple sizes. However, some guests experienced issues with sizing and compatibility with certain pumps, which may require additional purchases. Overall, these inserts are seen as a valuable addition to the pumping experience, providing both comfort and functionality.
Summary created by AI from text of reviews reflecting recent feedback provided across different star ratings (includes incentivized reviews)
4.2 out of 5 stars with 540 reviews
design: 4.8 out of 5
easy to clean: 5 out of 5
safety: 4.86 out of 5
87% would recommend
8 recommendations
5 out of 5 stars
19 November, 2025
originally posted on onewillow.com
These are great! No more
[This review was collected as part of a promotion.] These are great! No more buying multiple flanges to clutter the drying rack. 24mm flange and these are perfect. So comfortable and great to be able to change sizes as the breastfeeding journey goes on.
5 out of 5 stars
18 November, 2025
originally posted on onewillow.com
Bought these for my wife,
[This review was collected as part of a promotion.] Bought these for my wife, they greatly improve her comfort with her pumps
5 out of 5 stars
17 November, 2025
originally posted on onewillow.com
Love these! They fit perfectly
[This review was collected as part of a promotion.] Love these! They fit perfectly into the willow go and 360. They also can fit into any spectra 24 flanges.
5 out of 5 stars
9 November, 2025
originally posted on onewillow.com
Worked great. Easy to place
[This review was collected as part of a promotion.] Worked great. Easy to place in flange and stayed put.
5 out of 5 stars
5 November, 2025
originally posted on onewillow.com
These inserts make a big
[This review was collected as part of a promotion.] These inserts make a big difference! I recommended reconsidering your size about a month into your pumping- mine changed. I’m glad they have this range of sizing.
5 out of 5 stars
4 November, 2025
originally posted on onewillow.com
I bought these to use
[This review was collected as part of a promotion.] I bought these to use with my size 24 flange after finding out the 24 was too big for me, these are great, easy to clean and use.
5 out of 5 stars
30 October, 2025
originally posted on onewillow.com
The inserts have made pumping
[This review was collected as part of a promotion.] The inserts have made pumping so much more productive and comfortable.
5 out of 5 stars
29 October, 2025
originally posted on onewillow.com
The inserts are crucial to
[This review was collected as part of a promotion.] The inserts are crucial to my flow! They're comfortable and increase my output.
5 out of 5 stars
27 October, 2025
originally posted on onewillow.com
Perfect size and soft texture,
[This review was collected as part of a promotion.] Perfect size and soft texture, increased milk supply. Thanks!
2 out of 5 stars
23 October, 2025
originally posted on onewillow.com
Used with willow wave. . . seemed to
[This review was collected as part of a promotion.] Used with willow wave. . . seemed to flod over in tunnel and then was leaving sore on nipples from friction. . . attempted to reposition multiple times. . . good attempt but not working with that pump
1 reply from Willow Customer Care team - 14 days ago
We appreciate you sharing your experience and would love to partner with you on your pumping journey! Please email our Customer Care team at care@onewillow.com with a brief description of the issue you're experiencing, your contact details, and a good time to reach you. A member of our team will follow up to support you with the next steps.
5 out of 5 stars
21 October, 2025
originally posted on onewillow.com
These are very comfortable and
[This review was collected as part of a promotion.] These are very comfortable and slide easily into my existing pump.
5 out of 5 stars
11 October, 2025
originally posted on onewillow.com
These made all the difference
[This review was collected as part of a promotion.] These made all the difference in my output! So grateful for the expert session to help me find the right size!
5 out of 5 stars
26 August, 2025
originally posted on onewillow.com
Sizing inserts work great and
[This review was collected as part of a promotion.] Sizing inserts work great and are very comfortable!
2 out of 5 stars
16 August, 2025
originally posted on onewillow.com
These unfortunately did not work
[This review was collected as part of a promotion.] These unfortunately did not work for me. They also do not fit with the containers that I bought, (they only work with the 24mm), so I'd have to buy another set of containers to use them.
5 out of 5 stars
11 August, 2025
originally posted on onewillow.com
fit well in 24mm flanges.
[This review was collected as part of a promotion.] fit well in 24mm flanges. they are as advertised. my output is better with the 19mm inserts than if i just used the 21mm flanges
2 out of 5 stars
10 August, 2025
originally posted on onewillow.com
I have low supply and
[This review was collected as part of a promotion.] I have low supply and there is no low supply option for milk storage. What I do pump gets lost in the bags and feels like a waste of plastic
3 out of 5 stars
1 August, 2025
originally posted on onewillow.com
This pump is great other
[This review was collected as part of a promotion.] This pump is great other than everything needs to be dry COMPLETELY or it won’t work. The flanges pop off and I can’t use it half the time
5 out of 5 stars
24 July, 2025
originally posted on onewillow.com
Flange inserts are comfortable and
[This review was collected as part of a promotion.] Flange inserts are comfortable and helped me improve my flow
5 out of 5 stars
22 July, 2025
originally posted on onewillow.com
Love that these can be
[This review was collected as part of a promotion.] Love that these can be easily added and adjusted as my nipple size changes
4 out of 5 stars
11 July, 2025
originally posted on onewillow.com
These are great when you
[This review was collected as part of a promotion.] These are great when you get the correct size, but unfortunately, the milk gets up around the top and will leak/drip when you take your pumps off.