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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 - 15mm

4 Questions
$14.99
Size15mm

In Stock

Eligible for registries and wish lists
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With Target Circle™ Card (restrictions apply)

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
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: 85236124
UPC: 858298006590
Item Number (DPCI): 030-05-4598
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: 5.5 inches length x 4.6 inches width x 1.6 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: Can these be used with the milk collector and manual pumps?

submitted by Ambz - 10 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 - 10 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 (4)

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Guests are saying

The flange inserts have received high praise for their comfort, flexibility, and effectiveness in enhancing milk output during pumping sessions. Many guests appreciate the soft material that prevents nipple irritation and the ease of cleaning. The sizing inserts are particularly noted for helping achieve a better fit, making the pumping experience more enjoyable and productive. However, some guests have experienced challenges with sizing and performance, indicating a need for careful selection.
    Summary created by AI from text of reviews reflecting recent feedback provided across different star ratings (includes incentivized reviews)
    4.4 out of 5 stars with 1068 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
    30 October, 2026
    originally posted on onewillow.com
    Image

    Love it so much! Willow

    [This review was collected as part of a promotion.] Love it so much! Willow insert suitable with my elastic nipple
    Umzarul M.
    Did you find this review helpful?
    5 out of 5 stars
    26 October, 2026
    originally posted on onewillow.com
    Image

    These fit great and are

    [This review was collected as part of a promotion.] These fit great and are helpful in increasing my output!
    Katherine R.
    Did you find this review helpful?
    5 out of 5 stars
    26 October, 2026
    originally posted on onewillow.com
    Image

    These fit great and are

    [This review was collected as part of a promotion.] These fit great and are helpful in increasing my output!
    Katherine R.
    Did you find this review helpful?
    5 out of 5 stars
    23 October, 2026
    originally posted on onewillow.com
    Image

    Extra comfort!

    [This review was collected as part of a promotion.] Extra comfort!
    Ani D.
    Did you find this review helpful?
    5 out of 5 stars
    16 October, 2026
    originally posted on onewillow.com
    Image

    Loved the feel of these

    [This review was collected as part of a promotion.] Loved the feel of these soft and don’t pinch the nipple points for cute design too lol. Sizing kit is accurate and comes nicely package.
    Conner r.
    Did you find this review helpful?
    5 out of 5 stars
    16 October, 2026
    originally posted on onewillow.com
    Image

    Loved the feel of these

    [This review was collected as part of a promotion.] Loved the feel of these soft and don’t pinch the nipple points for cute design too lol. Sizing kit is accurate and comes nicely package.
    Conner r.
    Did you find this review helpful?
    5 out of 5 stars
    12 October, 2026
    originally posted on onewillow.com
    Image

    Love to use these with

    [This review was collected as part of a promotion.] Love to use these with my spectra s1 for hands free pumping experience! They are very comfortable and give me great output when used with the willow flange inserts
    SASHA P.
    Did you find this review helpful?
    5 out of 5 stars
    12 October, 2026
    originally posted on onewillow.com
    Image

    Love to use these with

    [This review was collected as part of a promotion.] Love to use these with my spectra s1 for hands free pumping experience! They are very comfortable and give me great output when used with the willow flange inserts
    SASHA P.
    Did you find this review helpful?
    5 out of 5 stars
    8 October, 2026
    originally posted on onewillow.com
    Image

    Perfect fit

    [This review was collected as part of a promotion.] Perfect fit
    Kayla W.
    Did you find this review helpful?
    5 out of 5 stars
    22 September, 2026
    originally posted on onewillow.com
    Image

    Works well and is comfy

    [This review was collected as part of a promotion.] Works well and is comfy
    GWEN M.
    Did you find this review helpful?
    5 out of 5 stars
    6 September, 2026
    originally posted on onewillow.com
    Image

    These are my favorite flanges,

    [This review was collected as part of a promotion.] These are my favorite flanges, the best out there. They are soft and flexible. I love them!!!
    Angelina O.
    Did you find this review helpful?
    5 out of 5 stars
    6 September, 2026
    originally posted on onewillow.com
    Image

    These are my favorite flanges,

    [This review was collected as part of a promotion.] These are my favorite flanges, the best out there. They are soft and flexible. I love them!!!
    Angelina O.
    Did you find this review helpful?
    5 out of 5 stars
    31 August, 2026
    originally posted on onewillow.com
    Image

    Have held up well so

    [This review was collected as part of a promotion.] Have held up well so far and are comfortable during pumping sessions.
    Courtney H.
    Did you find this review helpful?
    5 out of 5 stars
    31 August, 2026
    originally posted on onewillow.com
    Image

    Have held up well so

    [This review was collected as part of a promotion.] Have held up well so far and are comfortable during pumping sessions.
    Courtney H.
    Did you find this review helpful?
    5 out of 5 stars
    24 August, 2026
    originally posted on onewillow.com
    Image

    Works well!

    [This review was collected as part of a promotion.] Works well!
    Nora W.
    Did you find this review helpful?
    5 out of 5 stars
    15 August, 2026
    originally posted on onewillow.com
    Image

    These inserts were so helpful.

    [This review was collected as part of a promotion.] These inserts were so helpful. The right size flange has helped me express more milk and feels more comfortable.
    Nicole P.
    Did you find this review helpful?
    5 out of 5 stars
    14 August, 2026
    originally posted on onewillow.com
    Image

    Love these flange inserts! They

    [This review was collected as part of a promotion.] Love these flange inserts! They last forever, fit great and clean easily.
    Sarah T.
    Did you find this review helpful?
    5 out of 5 stars
    14 August, 2026
    originally posted on onewillow.com
    Image

    Love these flange inserts! They

    [This review was collected as part of a promotion.] Love these flange inserts! They last forever, fit great and clean easily.
    Sarah T.
    Did you find this review helpful?
    5 out of 5 stars
    10 August, 2026
    originally posted on onewillow.com
    Image

    The sizing insert helped increase

    [This review was collected as part of a promotion.] The sizing insert helped increase my output and made pumping more comfortable.
    Schuyler A.
    Did you find this review helpful?
    5 out of 5 stars
    10 August, 2026
    originally posted on onewillow.com
    Image

    The sizing insert helped increase

    [This review was collected as part of a promotion.] The sizing insert helped increase my output and made pumping more comfortable.
    Schuyler A.
    Did you find this review helpful?

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