---
product_id: 590637508
title: "10PCS Flange Sizing Kit 13/15/17/19/21mm for 24mm Flange/Shield of Most Pumps, Silicone Flange Inserts Replacement Kit, Pumping Essential Kit for Moms"
brand: "nuliie"
price: "$31"
currency: NZD
in_stock: true
reviews_count: 8
category: "Nuliie"
url: https://www.desertcart.nz/products/590637508-10pcs-flange-sizing-kit-13-15-17-19-21mm-24mm
store_origin: NZ
region: New Zealand
---

# Lightweight silicone for max comfort 5 size options (13-21mm) for perfect fit Dishwasher safe & easy to clean 10PCS Flange Sizing Kit 13/15/17/19/21mm for 24mm Flange/Shield of Most Pumps, Silicone Flange Inserts Replacement Kit, Pumping Essential Kit for Moms

**Brand:** nuliie
**Price:** $31
**Availability:** ✅ In Stock

## Summary

> 🍼 Pump smarter, not harder — comfort and efficiency in every size!

## Quick Answers

- **What is this?** 10PCS Flange Sizing Kit 13/15/17/19/21mm for 24mm Flange/Shield of Most Pumps, Silicone Flange Inserts Replacement Kit, Pumping Essential Kit for Moms by nuliie
- **How much does it cost?** $31 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nz](https://www.desertcart.nz/products/590637508-10pcs-flange-sizing-kit-13-15-17-19-21mm-24mm)

## Best For

- nuliie enthusiasts

## Why This Product

- Trusted nuliie brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Custom Fit for Every Mom:** Five precise flange sizes ensure a tailored pumping experience that boosts comfort and milk flow.
- • **Smart Sizing Kit Included:** Comes with a nipple measurement ruler to help you find your perfect fit and adapt as your needs change.
- • **Soft, Food-Grade Silicone:** BPA-free, skin-friendly material designed to reduce pain and stimulate milk production naturally.
- • **Boost Your Pumping Efficiency:** Optimized flange sizing reduces pumping time while maximizing milk output—because every drop counts.
- • **Effortless Cleaning & Maintenance:** Dishwasher safe with included cleaning brush for hygienic, hassle-free care.

## Overview

The Nuliie Silicone Flanges Insert Replacement Kit offers 10 BPA-free, soft silicone inserts in five sizes (13/15/17/19/21mm) designed to fit 24mm breast pump flanges. This lightweight, dishwasher-safe kit enhances pumping comfort, reduces pain, and maximizes milk production. It includes a nipple ruler and cleaning brush, making it an essential, customizable accessory for modern breastfeeding moms seeking efficiency and ease.

## Description

desertcart.com : Nuliie Silicone Flanges Insert Replacement Kit, Flange Sizing Kit for Electric Breast Pumps, Pumping Essentials for Moms, 13/15/17/19/21mm for 24mm Flange/Shield, 10PCS : Baby

Review: Great variety and super easy to use! - This silicone flange insert kit has been a lifesaver for my pumping routine. The variety of sizes (13/15/17/19/21mm) makes it really easy to find the perfect fit for comfort and efficiency. The inserts are soft, flexible, and easy to snap in and out of my 24mm breast pump flanges, so switching sizes or cleaning is hassle-free. I also love that it comes with multiple pieces, so I always have backups ready. Overall, it’s a practical, high-quality kit that makes pumping more comfortable and customizable — definitely a must-have for breastfeeding moms!
Review: Soft , good fit - I love that it includes multiple sizes (13, 15, 17, 19, and 21mm), which makes it easy to find the perfect fit without having to buy separate inserts. The sizing variety is especially helpful for moms who are still figuring out what works best for them. The silicone is soft, flexible, and very comfortable against the skin. Once inserted into my 24mm flange, it stayed securely in place and created a better seal, which noticeably improved comfort and suction. Pumping felt less painful and more efficient compared to using a standard hard plastic flange. Cleaning is simple, and the inserts seem durable even after multiple washes. This kit is a great value for the price and perfect for moms who want a more customized, comfortable pumping experience. Highly recommend for anyone using 24mm breast pump flanges who wants better comfort and fit!

## Features

- [HIGH COMPATIBILITY] Nuliie flange sizing kit 13/15/17/19/21mm (10pcs) fit most 24mm electric and manual wearable breast pumps. It will reduce the 24mm shield nipple tunnel down to correct size. Note: Not compatible with 27-28mm shields.
- [MUST-HAVE ACCESSORY FOR BREAST PUMPS] Achieve enhanced breast pumping, reduce pumping time, and maximize milk production by using the essential flange inserts for your breast pump. The comfortable and soft silicone material is designed to stimulate milk flow and increase comfort during use. With the added benefits of reduced pain and increased milk output, our breast pump flange inserts are a must-have for any breastfeeding mother needing to pump milk.
- [SAFE & EASY TO CLEAN] Ensure safety and maximize the performance of your breast pump with our flange inserts. Made from food-grade liquid silicone and free from BPA, these inserts are easy to clean and dishwasher safe. We recommend washing the pump inserts promptly after each use and replacing them every 2 months to maintain optimal functionality. Plus, receive a complimentary cleaning brush for added convenience.
- [CARING SERVICE] With our silicone flange inserts, you receive a free nipple measurement ruler to help you choose the perfect size. Compare the size of your nipple before and after pumping to ensure the most comfortable and effective fit. We provide unparalleled after-sale for mothers by answering your questions anytime and anywhere.
- [FRIENDLY REMINDER] Nipple size can vary throughout different breastfeeding stages, requiring different sizes of flange inserts for your breast pump. If you're aware of your exact nipple size, we recommend purchasing the corresponding size directly. However, if you're unsure, we suggest starting with our 10-pack of Flange Inserts, which contains five different sizes to ensure you find the perfect fit.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0CMPBBHMZ |
| Additional Features | Lightweight |
| Best Sellers Rank | #178 in Baby ( See Top 100 in Baby ) #8 in Breastfeeding Supplies |
| Brand | Nuliie |
| Brand Name | Nuliie |
| Color | Transparent |
| Customer Reviews | 4.6 out of 5 stars 3,159 Reviews |
| Included Components | 13/15/17/19/21mm Flange Inserts (10PCS), Cleaning Brush, Nipple Ruler * 1PCS |
| Is the item dishwasher safe? | Yes |
| Item Weight | 0.04 Pounds |
| Manufacturer | Nuliie |
| Material | Silicone |
| Material Type | Silicone |
| Material Type Free | BPA Free |
| Model Name | NEMMZH |
| Number of Items | 10 |
| Size | 13/15/17/19/21 mm 10PCS for 24 mm shield |
| Special Feature | Lightweight |
| Unit Count | 10.0 Count |

## Product Details

- **Brand:** Nuliie
- **Included Components:** 13/15/17/19/21mm Flange Inserts (10PCS), Cleaning Brush, Nipple Ruler * 1PCS
- **Material:** Silicone
- **Material Type Free:** BPA Free
- **Special Feature:** Lightweight

## Images

![10PCS Flange Sizing Kit 13/15/17/19/21mm for 24mm Flange/Shield of Most Pumps, Silicone Flange Inserts Replacement Kit, Pumping Essential Kit for Moms - Image 1](https://m.media-amazon.com/images/I/81uyysA1YZL.jpg)

## Available Options

This product comes in different **Size** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great variety and super easy to use!
*by H***H on November 10, 2025*

This silicone flange insert kit has been a lifesaver for my pumping routine. The variety of sizes (13/15/17/19/21mm) makes it really easy to find the perfect fit for comfort and efficiency. The inserts are soft, flexible, and easy to snap in and out of my 24mm breast pump flanges, so switching sizes or cleaning is hassle-free. I also love that it comes with multiple pieces, so I always have backups ready. Overall, it’s a practical, high-quality kit that makes pumping more comfortable and customizable — definitely a must-have for breastfeeding moms!

### ⭐⭐⭐⭐⭐ Soft , good fit
*by Y***R on December 13, 2025*

I love that it includes multiple sizes (13, 15, 17, 19, and 21mm), which makes it easy to find the perfect fit without having to buy separate inserts. The sizing variety is especially helpful for moms who are still figuring out what works best for them. The silicone is soft, flexible, and very comfortable against the skin. Once inserted into my 24mm flange, it stayed securely in place and created a better seal, which noticeably improved comfort and suction. Pumping felt less painful and more efficient compared to using a standard hard plastic flange. Cleaning is simple, and the inserts seem durable even after multiple washes. This kit is a great value for the price and perfect for moms who want a more customized, comfortable pumping experience. Highly recommend for anyone using 24mm breast pump flanges who wants better comfort and fit!

### ⭐⭐⭐⭐⭐ No-frills variety pack gives you plenty of options
*by T***U on July 12, 2025*

Summary: it’s exactly as advertised. You get a variety of flange inserts to test, a very handy brush to wash them, and a nipple guide to measure. Easy, straightforward, can’t go wrong buying the variety pack. More detail: it’s packaged well, each set of flange inserts comes in its own plastic packaging in the box. On each insert, the size is printed on the rim of it, so it’s fairly easy to see what size you’re working with. The included brush makes it much easier to clean, especially if you get bits of milk stuck around the edges, which is pretty common for me. It’s difficult to get it fully clean when using a traditional bottle brush, but the included brush is made of a soft material that really gets the milk off. It fit perfectly in my spectra flanges, and fit pretty decently in my Mandela ones- it just needed a little bit more finagling to get a flush fit. This was a good way to test out a variety of different sizes quickly. Tip: the silicone can stick a little, and create friction on your sensitive areas. A dab of coconut oil on your nipples before you pump, and you won’t have this problem. You can also apply the oil directly to the flange insert, but it gets a bit messy. Putting it on your skin is just as effective, without making the flange overly greasy.

## Frequently Bought Together

- Nuliie 10PCS Flange Sizing Kit 13/15/17/19/21mm for 24mm Flange/Shield of Most Pumps, Silicone Flanges Insert for Momcozy/Spectra Electric Breast Pumps, Pumping Essential Kit for Moms
- Medela Manual breast pump with Flex Shields Harmony Single Hand for More Comfort and Expressing More Milk
- haakaa Manual Breast Pump for Breastfeeding, Silicone, Clear 4oz/100ml

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*Product available on Desertcart New Zealand*
*Store origin: NZ*
*Last updated: 2026-02-08*