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Willow Breast Pump Sizing Insert - 2 of 3Willow Breast Pump Sizing Insert - 3 of 3
Willow Breast Pump Sizing Insert - 1 of 3

Willow Breast Pump Sizing Insert - 17mm

$14.99
Size17mm

In Stock

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At a glance

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.

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

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, delivered to the guest, delivered by a Shipt shopper, or picked up by the guest.
See the return policy for complete information.

Q: What is the material used for the sizing inserts?

submitted by AI Shopping Assistant - 2 months ago

  • A: The sizing inserts are made from flexible silicone material that ensures a snug and secure fit.

    submitted byAI Shopping Assistant - 2 months ago
    Ai generated

Q: Are the inserts compatible with all breast pumps?

submitted by AI Shopping Assistant - 2 months ago

  • A: The sizing inserts are specifically compatible with Willow Generation 3 Breast Pumps and fit into 24mm flanges.

    submitted byAI Shopping Assistant - 2 months ago
    Ai generated

Q: How should the sizing inserts be cleaned?

submitted by AI Shopping Assistant - 2 months ago

  • A: The inserts are dishwasher safe, making them easy to assemble and clean after use.

    submitted byAI Shopping Assistant - 2 months ago
    Ai generated

Q: What sizes are available for the sizing inserts?

submitted by AI Shopping Assistant - 2 months ago

  • A: The sizing inserts come in three sizes: 15mm, 17mm, and 19mm, to accommodate various nipple measurements.

    submitted byAI Shopping Assistant - 2 months ago
    Ai generated

Q: What nipple measurements correspond to each insert size?

submitted by AI Shopping Assistant - 2 months ago

  • A: Nipple sizes 11-13mm use 15mm insert, 13-15mm use 17mm, and 15-17mm use 19mm insert.

    submitted byAI Shopping Assistant - 2 months ago
    Ai generated

Q: Can these be used with the milk collector and manual pumps?

submitted by Ambz - 5 months ago

  • A: Our sizing inserts are compatible with Willow Wave™ and ideal to help improve comfort and fit, however they are not compatible with our Catch All Cups or Passive Manual Pump

    submitted byCustomer Care - 5 months ago
    Brand expert

Q: would this fit on my Elvie stride?

submitted by Jessica - 4 years ago

  • A: We have not tested our inserts on other pumps so cannot recommend.

    submitted byCustomer Care - 4 years ago
    Brand expert

Q: will the insert work with a 21mm flange?

submitted by Sb - 4 years ago

  • A: Willow inserts fit perfectly into our 24mm flanges and containers.

    submitted byCustomer Care - 4 years ago
    Brand expert

Q: is this just one flange or 2?

submitted by Bri122089 - 4 years ago

  • A: Inserts come in sets of 2.

    submitted byCustomer Care - 4 years ago
    Brand expert
See all questions (9)

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Guests are saying

The Willow flange inserts have garnered positive feedback for their comfort and effectiveness in enhancing the pumping experience. Many guests appreciate the soft material and snug fit, which helps prevent soreness and improves milk output. The variety of sizes available allows for a personalized fit, making them suitable for different needs. However, some guests have faced challenges with the pump's performance and output, indicating that while the inserts are beneficial, the overall experience may vary.
    Summary created by AI from text of reviews reflecting recent feedback provided across different star ratings (includes incentivized reviews)
    4.3 out of 5 stars with 610 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
    27 May, 2026
    originally posted on onewillow.com
    Image

    Pumping output is so much

    Pumping output is so much better with the right size
    Rachael W.
    Did you find this review helpful?
    5 out of 5 stars
    25 May, 2026
    originally posted on onewillow.com
    Image

    Made all the difference in

    [This review was collected as part of a promotion.] Made all the difference in the world! Make sure you’re changing your parts
    Belinda J.
    Did you find this review helpful?
    5 out of 5 stars
    16 May, 2026
    originally posted on onewillow.com
    Image

    The Willow flange inserts were

    [This review was collected as part of a promotion.] The Willow flange inserts were honestly one of my favorite parts of the pumping experience. They are incredibly comfortable and made a huge difference for me, especially having sensitive nipples. Compared to other flange inserts I’ve tried, these felt much softer and more natural while pumping and helped prevent the soreness I usually experience. They also created a much better fit, which made pumping more comfortable and efficient overall. I highly recommend the Willow flange inserts if you’re struggling with comfort or flange sizing. They made pumping feel significantly gentler, and more comfortable.
    Erika B.
    Did you find this review helpful?
    5 out of 5 stars
    26 April, 2026
    originally posted on onewillow.com
    Image

    Very easy to use with

    [This review was collected as part of a promotion.] Very easy to use with the Willow go & easy to clean :)
    Maisey H.
    Did you find this review helpful?
    5 out of 5 stars
    17 April, 2026
    originally posted on onewillow.com
    Image

    These inserts are much more

    [This review was collected as part of a promotion.] These inserts are much more comfortable than the standard silicone inserts I’ve used before. The quality of them are great and they fit snugly in the flanges of the Willow.
    Ara K.
    Did you find this review helpful?
    5 out of 5 stars
    15 April, 2026
    originally posted on onewillow.com
    Image

    I really recommend getting these

    [This review was collected as part of a promotion.] I really recommend getting these inserts. You can select your size and get multiples. It comes with 24mm and then 21mm inserts, which most of us girlies are not that size. Worth the money!
    Meagan R.
    Did you find this review helpful?
    5 out of 5 stars
    1 April, 2026
    originally posted on onewillow.com
    Image

    Super comfortable and a great

    [This review was collected as part of a promotion.] Super comfortable and a great fit! Highly recommend!
    Catherine B.
    Did you find this review helpful?
    5 out of 5 stars
    30 March, 2026
    originally posted on onewillow.com
    Image

    The Willow Breast pump was

    [This review was collected as part of a promotion.] The Willow Breast pump was the third hands-free wearable breast pump I tried, and I am so happy that I did! I love this pump and recommend it to family and friends all the time. Willow has made the breastfeeding journey of a busy on-the-go mom possible!
    Jennifer D.
    Did you find this review helpful?
    5 out of 5 stars
    19 March, 2026
    originally posted on onewillow.com
    Image

    These feel so much softer

    [This review was collected as part of a promotion.] These feel so much softer than other inserts I've tried. Love them
    Jennifer S.
    Did you find this review helpful?
    1 out of 5 stars
    19 March, 2026
    originally posted on onewillow.com
    Image

    The willow is not working

    [This review was collected as part of a promotion.] The willow is not working for me. I have only been able to get one ounce with a pumping session compared to 5 oz with the spectra. I tried a different flange size and this made no difference. I also tried different bras. Very disappointing especially for the price even with my insurance!
    Celine S.
    Did you find this review helpful?
    5 out of 5 stars
    18 March, 2026
    originally posted on onewillow.com
    Image

    soft, comfortable and well-fitting. The

    [This review was collected as part of a promotion.] soft, comfortable and well-fitting. The sizing guide was super helpful and accurate
    Katie B.
    Did you find this review helpful?
    5 out of 5 stars
    16 March, 2026
    originally posted on onewillow.com
    Image

    These are very helpful especially

    [This review was collected as part of a promotion.] These are very helpful especially since each nipple isn’t necessarily the same size. I get a better pumping experience with them and it is very comfortable
    Nina R.
    Did you find this review helpful?
    5 out of 5 stars
    14 March, 2026
    originally posted on onewillow.com
    Image

    Perfect fit! Use for my

    [This review was collected as part of a promotion.] Perfect fit! Use for my spectra, momcozy, and willow pumps!
    Alexis N.
    Did you find this review helpful?
    5 out of 5 stars
    2 March, 2026
    originally posted on onewillow.com
    Image

    I like it! I didn’t

    [This review was collected as part of a promotion.] I like it! I didn’t know I need it, my output is so much better after adding this. The material looks great.
    Diana F.
    Did you find this review helpful?
    3 out of 5 stars
    2 March, 2026
    originally posted on onewillow.com
    Image

    Does not consistently work because

    [This review was collected as part of a promotion.] Does not consistently work because it does not always create a seal.
    Rachel K.
    Did you find this review helpful?
    5 out of 5 stars
    24 February, 2026
    originally posted on onewillow.com
    Image

    Happy for these inserts. They

    [This review was collected as part of a promotion.] Happy for these inserts. They are so comfortable and ensure that i can pump until the last drop as it’s the proper fit for my nipple.
    Jennifer C.
    Did you find this review helpful?
    1 out of 5 stars
    18 February, 2026
    originally posted on onewillow.com
    Image

    The Willow 360 pump was

    [This review was collected as part of a promotion.] The Willow 360 pump was extremely painful even after trying many sessions and getting assistance from the mom coaches with sizing and other usage tips. I would not recommend this product to anyone and so far Willow has not assisted me with any even partial refund so I would also not buy from this company.
    Kaley P.
    Did you find this review helpful?
    5 out of 5 stars
    16 February, 2026
    originally posted on onewillow.com
    Image

    I'm a second time mama

    [This review was collected as part of a promotion.] I'm a second time mama and I always wanted a Willow. I decided to get the Willow Go and the inserts. They fit perfectly and I've been pumping consistently. They have been holding up and I am loving them.
    Ivanne V.
    Did you find this review helpful?
    5 out of 5 stars
    11 February, 2026
    originally posted on onewillow.com
    Image

    Works great. Make sure you

    [This review was collected as part of a promotion.] Works great. Make sure you have the 24mm size for the inserts. These inserts feel better with use than the ones I have for my plug in pump.
    Katie D.
    Did you find this review helpful?
    5 out of 5 stars
    2 February, 2026
    originally posted on onewillow.com
    Image

    Exactly what I ordered! Wish

    [This review was collected as part of a promotion.] Exactly what I ordered! Wish these were included with the pump because I ended up having to order several pairs to find the size that worked best for me
    Sharon R.
    Did you find this review helpful?

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