BabyBuddha Breast Pumps & Accessories – BabyBuddha

Flange Inserts – 21mm (2-pack) for Wearable Breast Pump and 24mm Flanges

Flange Inserts – 21mm (2-pack) for Wearable Breast Pump and 24mm Flanges - Main image
$8.31 $12.99 In stock

Category: Accessories

Achieve a better fit for a more comfortable, effective pump session.
Our 21mm Flange Inserts are designed to help moms achieve proper alignment, improved comfort, and optimized milk expression when using their BabyBuddha pumps.

Why you'll love them

  • Helps improve comfort and reduce friction during pumping
  • Supports better nipple alignment for more effective milk removal
  • Soft, flexible design for a comfortable, customizable fit
  • Easy to insert, remove, and clean

Compatible With

  • BabyBuddha® Wearable Breast Pump
  • BabyBuddha® 2.0 and 3.0 Pump (when used with 24mm EasyFit Flanges)

Sizing Tip

Proper flange sizing is key to comfortable and effective pumping. If 21mm is your best fit, these inserts help customize your setup without replacing your entire flange.

Care & Cleaning

Wash with warm, soapy water after each use and allow to air dry. Safe for standard sterilization methods.


Before you pay

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When it ships

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Standard Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

Express Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

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If you need a refund

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Please contact us for the refund processing timeframe before returning an item.

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Delivery costs

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Standard Shipping · United States: $0.00

Express Shipping · United States: $3.99

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Returning an item

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United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.

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Customer Reviews (5.0 / 5 · 5 reviews)

Jason ★★★★★

I was skeptical about whether sizing down would make a real difference, but these inserts fit so snugly into my 24mm flanges that the seal feels seamless. I can finally pump without the constant tugging and chafing, and milk flow seems steadier with the proper alignment.

Samuel ★★★★★

The 21mm inserts snap into my 24mm flanges perfectly, no wiggling or slipping mid-session. That snugger alignment made a real difference—my output feels more consistent and the pull doesn’t pinch the way it used to.

Matthew ★★★★★

After two weeks of using these with my 24mm flanges, the 21mm insert finally stopped the nipple rubbing that was making me dread pumping. The softer silicone edge sits flush so there's no gap, and my output is noticeably steadier now. Worth the small swap for the comfort alone.

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