# Nursi Luna Flange Sizing Kit (10-Piece) for 24mm Shields | 13-21mm Inserts & Nipple Ruler

**Brand:** Nursi Luna
**SKU:** yp5576
**ASIN:** B0FPQ2R73R
**Canonical URL:** https://crowcrowcrow.com/p/nursi-luna-flange-sizing-kit-21mm-24mm-electric-breast-pump-flanges-shields-10pcs-soft/yp5576
**Category:** baby-products
**Subcategory:** Feeding
**Availability:** in_stock
**Price (INR, all-inclusive):** ₹2,620
**Discount:** 19%
**Customer rating:** 4.89/5 from 9 ratings

## Description

Nursi Luna Flange Sizing Kit (10-piece) offers 13-21mm BPA-free silicone inserts and a nipple ruler for 24mm shields. Find your perfect fit for comfortable, efficient pumping. Imported from USA, duties included. Arrives {{ccc_delivery_eta}} via ExpressBox.

## Highlights

- Comprehensive Sizing Options — Includes 10 inserts across 5 sizes (13, 15, 17, 19, 21mm) to precisely fit most 24mm breast pump shields, ensuring a personalized and comfortable pumping experience.
- Professional Measurement Tool — Features an IBCLC-developed nipple ruler and guide, simplifying the process of finding the correct flange size and tracking changes over time.
- Soft, BPA-Free Silicone — Made from food-grade liquid silicone, these inserts offer a soft, smooth, and comfortable cushioning layer, reducing friction and enhancing pumping ease.
- Improved Pumping Comfort & Efficiency — Correct flange sizing is vital for effective milk expression. This kit helps achieve proper suction, potentially increasing milk output and making pumping less stressful.

## Key features

- [ Precise Sizing, Better Pumping ] - Stop guessing and start pumping with confidence. The Nursi Luna flange sizing kit is expertly developed by an International Board Certified Lactation Consultant (IBCLC) to help moms find their perfect fit with ease. By eliminating the common confusion surrounding flange sizes, we provide the essential foundation for a more comfortable experience and improved pumping efficiency right from the start.
- [ High Compatibility & Flexible Options ] - This breast pump flange sizing kit includes 5 sizes (13/15/17/19/21mm), offering flexible options for a more customized fit. The silicone flange inserts are designed to fit most 24mm electric and manual breast pump flanges/shields, helping achieve a properly adjusted setup for a more personalized experience. Suitable for different needs on each side or size changes over time. (Not compatible with 27–28mm shields.)
- [ Professional Measurement Tool & Guide ] - Finding your perfect match is simple with our professional nipple measurement tool for flanges. The flange insert kit features a precision nipple ruler and a detailed instruction manual to help you track physiological changes throughout your breastfeeding journey. Use this tool to accurately select the ideal breast pump flange insert, supporting proper suction fit and effective milk expression.
- [ Soft Silicone Material & Comfort Fit ] - Made from BPA-free, food-grade liquid silicone, these flange inserts provide a soft cushioning layer that is smoother than hard plastic. By reducing friction and supporting a proper fit, this flange size kit helps create a more natural and comfortable pumping experience. Easy to clean and dishwasher safe. We recommend replacing inserts every 1–2 months for best performance consistency.
- [ Multi-Stage Fit Support ] - Nipple size can vary throughout your journey, and this pump flange sizing kit is designed to adapt. We include a professional measurement tool and encourage you to compare nipple size before and after pumping to ensure the most comfortable and accurate fit. Whether you’re a new mom finding your first fit or an experienced user tracking changes, this kit supports a more comfortable and consistent pumping experience at every stage.

## Why choose this product

- Expert-Developed for Precision Fit
- Who Should Use & Who Should Skip

## How to use

1. Use the included Nursi Luna nipple ruler to accurately measure your nipple size, both before and after pumping if needed. — Measure Your Nipple
2. Choose the insert size (13, 15, 17, 19, or 21mm) that corresponds to your measurement and place it inside your 24mm breast pump shield. — Select Correct Insert
3. Ensure the insert fits snugly within the shield. Assemble your breast pump and begin pumping, checking for comfort and proper suction. — Assemble and Pump

## Product details

| Field | Value |
|---|---|
| Primary Material | Food-grade Silicone |
| Directions | Use the included ruler to measure nipple size. Select the appropriate insert size (13-21mm) and place it inside your 24mm breast pump shield. Ensure a snug fit before pumping. |
| Recommended Replacement | Every 1-2 months |
| Cost per use | {{ccc_price_per_unit:10:use}} — 10 uses per insert |
| Shelf life after opening | 12 months (standard for silicone accessories) |
| Reapplication math | N/A (Sizing Kit) |
| Contraindications | Not compatible with 27-28mm shields; ensure pump shield compatibility. |
| Allergens / common irritants | Food-grade Silicone (generally hypoallergenic) |
| Brand | Nursi Luna |
| Kit Includes | 10 inserts (13, 15, 17, 19, 21mm) + Nipple Ruler |
| Shield Compatibility | Fits most 24mm electric/manual breast pump flanges/shields |
| Color | Pink |
| Material | Food-grade Silicone |
| BPA-Free | Yes |
| Country of Origin | Not stated by manufacturer — US retail version, sourced from authorized US retailers |

## Attributes

- **Unit count:** 11

## Frequently asked questions

### How is this Nursi Luna flange sizing kit authentic vs. the version sold in Indian stores?

Sourced directly from authorized US retailers, this Nursi Luna kit is factory-sealed and imported per-order. It matches the exact specifications and quality standards US buyers receive. All customs duties and GST are included in the displayed price. Arrives {{ccc_delivery_eta}} via ExpressBox tracked shipping.

### Will the Nursi Luna kit I receive match what is shown on the US retailer's page?

Yes, orders are placed against the listed US retailer page at the time of purchase. Batch codes and packaging match what the US retailer dispatches. Photographs of every order are taken before international handover.

### What is the best flange size for effective pumping?

The ideal flange size is crucial for comfort and efficient milk extraction. The Nursi Luna kit, with its range of inserts and measurement tool, helps you find your perfect fit for optimal suction and milk output.

### How do I use the Nursi Luna flange sizing kit?

Use the included nipple ruler to measure your nipple size. Select the corresponding insert (13-21mm) and place it inside your 24mm breast pump shield. Ensure a snug fit before pumping.

### Can I use these Nursi Luna inserts with my Spectra pump?

Yes, these inserts are designed to fit most 24mm electric and manual breast pump flanges, including Spectra, Medela, Momcozy, and others, providing flexible compatibility.

### Are these Nursi Luna inserts safe for my baby?

Yes, they are made from BPA-free, food-grade liquid silicone, ensuring they are safe for contact with breast milk and for your baby's health.

### How often should I replace these flange inserts?

For optimal performance and hygiene, it is recommended to replace these flange inserts every 1 to 2 months, depending on usage frequency and cleaning habits.

### What are the benefits of using a flange sizing kit?

A sizing kit helps achieve a precise fit, leading to increased comfort, better suction, more efficient milk extraction, and potentially higher milk output, making the pumping experience less stressful.

### What if my nipple size changes during my breastfeeding journey?

This kit supports multi-stage fit adjustments. The included measurement tool allows you to re-evaluate and select different insert sizes as your nipple size changes over time.

## Compliance

{"material_safety":"Made from BPA-free, food-grade liquid silicone.","usage_warning":"Ensure correct size compatibility; not for 27-28mm shields. Replace every 1-2 months."}

## Images

1. https://images.crowcrowcrow.com/B0FPQ2R73R-0.webp
2. https://images.crowcrowcrow.com/B0FPQ2R73R-1.webp
3. https://images.crowcrowcrow.com/B0FPQ2R73R-2.webp
4. https://images.crowcrowcrow.com/B0FPQ2R73R-3.webp
5. https://images.crowcrowcrow.com/B0FPQ2R73R-4.webp
6. https://images.crowcrowcrow.com/B0FPQ2R73R-5.webp

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Source: https://crowcrowcrow.com/p/nursi-luna-flange-sizing-kit-21mm-24mm-electric-breast-pump-flanges-shields-10pcs-soft/yp5576

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