---
product_id: 785570912
title: "Flange Sizing Kit with Flange Inserts 10PCS, Nipple Ruler, Silicone Flanges Insert 13/15/17/19/21mm for 24mm Flange/Shield, Pumping Breastfeeding Essentials Kit"
brand: "nursi luna"
price: "131 zł"
currency: PLN
in_stock: true
reviews_count: 13
category: "Nursi Luna"
url: https://www.desertcart.pl/products/785570912-flange-sizing-kit-with-flange-inserts-10pcs-nipple-ruler-silicone
store_origin: PL
region: Poland
---

# 5 precise flange sizes (13-21mm) BPA-free, food-grade silicone Easy to sanitize & clean Flange Sizing Kit with Flange Inserts 10PCS, Nipple Ruler, Silicone Flanges Insert 13/15/17/19/21mm for 24mm Flange/Shield, Pumping Breastfeeding Essentials Kit

**Brand:** nursi luna
**Price:** 131 zł
**Availability:** ✅ In Stock

## Summary

> 👩‍🍼 Find your perfect fit, pump with confidence!

## Quick Answers

- **What is this?** Flange Sizing Kit with Flange Inserts 10PCS, Nipple Ruler, Silicone Flanges Insert 13/15/17/19/21mm for 24mm Flange/Shield, Pumping Breastfeeding Essentials Kit by nursi luna
- **How much does it cost?** 131 zł with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pl](https://www.desertcart.pl/products/785570912-flange-sizing-kit-with-flange-inserts-10pcs-nipple-ruler-silicone)

## Best For

- nursi luna enthusiasts

## Why This Product

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

## Key Features

- • **Hygiene Made Simple:** Durable, easy-to-clean inserts can be sanitized with boiling water for worry-free use.
- • **Designed for Busy Moms:** Lightweight, compact kit keeps your breastfeeding essentials organized and ready anywhere.
- • **Measure with Confidence:** Nipple ruler ensures you select the exact flange size, eliminating guesswork and discomfort.
- • **Perfect Fit, Every Time:** Includes 10 silicone flange inserts in 5 sizes for customized comfort and optimal pumping efficiency.
- • **Gentle on Sensitive Skin:** Crafted from soft, BPA-free silicone that supports healthy milk flow without irritation.

## Overview

The Nursi Luna Flange Sizing Kit offers 10 BPA-free silicone inserts in five sizes (13-21mm) plus a nipple ruler, enabling breastfeeding moms to customize their pump flange for maximum comfort and efficiency. Lightweight and easy to clean, this kit supports healthy milk flow and reduces discomfort, making it an essential tool for both new and experienced moms.

## Description

desertcart.com : Nursi Luna Flange Sizing Kit with Flange Inserts 10PCS, Nipple Ruler, Silicone Flanges Insert 13/15/17/19/21mm for 24mm Flange/Shield, Pumping Breastfeeding Essentials Kit : Baby

Review: ⭐️⭐️⭐️⭐️⭐️ Simple & Helpful - The Nursi Luna Flange Inserts (10PCS) work great and fit perfectly. They’re soft, comfortable, and helped improve suction while pumping. Easy to use, easy to clean, and very helpful for getting the right flange size. Great value for the price—definitely recommend!
Review: Very comfortable and useful . - Very good product . I liked that it comes with different sizes , so I was able to find the one that fits best and makes using the pump much more comfortable . The material is soft and easy to clean . It works well and I recommend it .

## Features

- Essential Breastfeeding Support for Moms: More than just an accessory—this nipple flange sizing kit is part of your true breastfeeding essentials. Correct sizing reduces discomfort, supports healthy pumping, and makes each session more effective for both new and experienced moms
- Customized Comfort: Experience ultimate comfort with our flange sizing kit featuring multiple size options (13mm, 15mm, 17mm, 19mm, 21mm). Find the fit for your unique needs and enjoy a cozy pumping experience
- Easy Measuring with Nipple Ruler: No more guessing sizes. The included nipple measurement tool makes it simple to identify your correct fit, helping moms choose the right flange insert quickly and confidently
- Safe and Gentle: Made from BPA-free, food-grade silicone, these flanges are soft, cushioned, and gentle on sensitive skin while supporting efficient milk flow. They’re easy to clean and maintain, with an included sponge brush for added convenience
- Easy to Clean and Durable: Made for busy breastfeeding mothers, these silicone flange inserts are easy to clean and maintain. They can be sanitized with boiling water, ensuring that the accessories remain hygienic and durable

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0FPKJ3371 |
| ASIN  | B0FPKJ3371 |
| Additional Features | Lightweight |
| Best Sellers Rank | #851 in Baby ( See Top 100 in Baby ) #137 in Breast Shells & Nipple Therapy Products |
| Brand Name | Nursi Luna |
| Color | Transparent |
| Customer Reviews | 4.6 4.6 out of 5 stars (1,808) |
| Date First Available  | October 13, 2025 |
| Included Components | 13/15/17/19/21mm Flange Inserts * 2PCS |
| Item model number  | FLANGEKIT |
| Manufacturer | Nursi Luna |
| Manufacturer  | Nursi Luna |
| Manufacturer Part Number | FLANGEKIT |
| Material Type | Silicone |
| Model Number | FLANGEKIT |
| Number of Items | 1 |
| Product Dimensions  | 2.44 x 3.46 x 4.09 inches; 5.93 ounces |
| Size | 4 in 1 kit with 10PCS 13/15/17/19/21mm |

## Product Details

- **Brand:** Nursi Luna
- **Included Components:** 13/15/17/19/21mm Flange Inserts * 2PCS
- **Material:** Silicone
- **Number of Items:** 1
- **Special Feature:** Lightweight

## Images

![Flange Sizing Kit with Flange Inserts 10PCS, Nipple Ruler, Silicone Flanges Insert 13/15/17/19/21mm for 24mm Flange/Shield, Pumping Breastfeeding Essentials Kit - Image 1](https://m.media-amazon.com/images/I/715zbTw8uBL.jpg)
![Flange Sizing Kit with Flange Inserts 10PCS, Nipple Ruler, Silicone Flanges Insert 13/15/17/19/21mm for 24mm Flange/Shield, Pumping Breastfeeding Essentials Kit - Image 2](https://m.media-amazon.com/images/I/71wNIkxe47L.jpg)
![Flange Sizing Kit with Flange Inserts 10PCS, Nipple Ruler, Silicone Flanges Insert 13/15/17/19/21mm for 24mm Flange/Shield, Pumping Breastfeeding Essentials Kit - Image 3](https://m.media-amazon.com/images/I/71MRicyJxIL.jpg)
![Flange Sizing Kit with Flange Inserts 10PCS, Nipple Ruler, Silicone Flanges Insert 13/15/17/19/21mm for 24mm Flange/Shield, Pumping Breastfeeding Essentials Kit - Image 4](https://m.media-amazon.com/images/I/61lhVFx25oL.jpg)
![Flange Sizing Kit with Flange Inserts 10PCS, Nipple Ruler, Silicone Flanges Insert 13/15/17/19/21mm for 24mm Flange/Shield, Pumping Breastfeeding Essentials Kit - Image 5](https://m.media-amazon.com/images/I/71HiO3dl-4L.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ ⭐️⭐️⭐️⭐️⭐️ Simple & Helpful
*by M***E on January 4, 2026*

The Nursi Luna Flange Inserts (10PCS) work great and fit perfectly. They’re soft, comfortable, and helped improve suction while pumping. Easy to use, easy to clean, and very helpful for getting the right flange size. Great value for the price—definitely recommend!

### ⭐⭐⭐⭐⭐ Very comfortable and useful .
*by Y***O on March 20, 2026*

Very good product . I liked that it comes with different sizes , so I was able to find the one that fits best and makes using the pump much more comfortable . The material is soft and easy to clean . It works well and I recommend it .

### ⭐⭐⭐⭐⭐ No more pumping pain!
*by A***Y on October 17, 2025*

Great quality! It came with directions for sizing that were easy to follow and helped me find my fit. The inserts are easy to clean and put in and take out of my pump. I’ve always despised pumping because it was uncomfortable and made me sore afterwards. I was using the 24mm flange that came with my pump until a lactation specialist suggested these. Turns out I needed a much smaller size flange. Finding the right size helped with pumping pain and increased my milk output! If this honest review helped make your decision, please mark it helpful!

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**Shop now:** [https://www.desertcart.pl/products/785570912-flange-sizing-kit-with-flange-inserts-10pcs-nipple-ruler-silicone](https://www.desertcart.pl/products/785570912-flange-sizing-kit-with-flange-inserts-10pcs-nipple-ruler-silicone)

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*Product available on Desertcart Poland*
*Store origin: PL*
*Last updated: 2026-04-23*