If you are looking for flange inserts to improve comfort and pumping efficiency, you’re in the right place. This guide helps you choose the best flange sizing inserts for 24mm shields, highlighting options for different sizes and compatibility. It’s ideal for new moms, moms with sensitive nipples, and anyone seeking a softer, more secure fit during pumping. The top picks below focus on compatibility with common 24mm flanges and provide clear reasons to choose each product.
| Product | Best For | Size Range | Key Benefit |
|---|---|---|---|
| Nursi Luna Flange Inserts 10PCS | Most comfortable fit for variable nipple sizes | 13–21mm | Multiple sizes in one kit for quick sizing |
| Nuliie 3-in-1 Flange Sizing Kit | Right size quickly, good value | 13–21mm | Includes 5 sizes, soft silicone |
| Suniceme Flange Inserts 21mm | Best for 24mm shields needing 21mm tunnel | 21mm | Widely compatible, BPA-free |
| Nuliie 5-in-1 Flange Sizing Kit | Comprehensive sizing, premium feel | 12–20mm | 10 inserts, dishwasher safe |
| Trymall Flange Inserts 13/15/17/19/21mm | Versatile for varied sizes | 13–21mm | Five-pack, broad compatibility |
Nursi Luna Flange Inserts 10PCS 13/15/17/19/21mm
Nursi Luna flange inserts offer essential comfort and adjustable sizing for a more effective pumping experience. This kit includes multiple sizes (13mm, 15mm, 17mm, 19mm, 21mm) designed to fit a 24mm flange while addressing varying nipple diameters. Best for new moms who need a quick way to dial in the right fit and reduce discomfort during sessions. The set is compatible with a wide range of 24mm wearable pumps, saving time on trial-and-error sizing.
Best for: first-time pumpers and moms seeking a customizable fit to minimize rubbing and discomfort. Choose this if you want a compact, all-in-one sizing kit that remains easy to clean and store.
Caution: Some users may still require a different size if their pump shield diameter differs significantly from standard 24mm fittings.
Nuliie 3-in-1 Flange Sizing Kit 13/15/17/19/21mm
This kit provides five sizes (13/15/17/19/21mm) in soft silicone to fit most 24mm shields. It’s designed to reduce the 24mm shield nipple tunnel to your chosen size, enhancing comfort and pumping efficiency. The inserts are BPA-free and dishwasher-safe, with a bonus cleaning brush included. A solid choice for moms who value safety, easy cleaning, and dependable sizing.
Best for: moms who want clear, pre-defined size options with straightforward use and quick maintenance. Better for those who value a compact set with a hygiene-conscious cleaning routine.
Caution: Not compatible with 27–28mm shields, so verify your flange size before purchase.
Suniceme Flange Inserts 21mm
Suniceme’s 21mm flange inserts are designed to reduce the 24mm shield nipple tunnel to 21mm, offering a specific fit for many popular 24mm shields. They are BPA-free and compatible with brands like Medela, Spectra, Elvie, and Momcozy, among others. The inserts are easy to sanitize via water steam or boiling water and are straightforward to clean with warm soap and water. Replacement recommended every 1–2 months for optimal performance.
Best for: users who want a direct 21mm reduction and broad compatibility with leading brands. Choose this if you frequently pump with several 24mm shield brands and want a reliable, easy-to-clean option.
Caution: Not compatible with 27mm shields; ensure your shield size aligns with 21mm inserts for best fit.
Nursi Luna Flange Sizing Kit 3-in-1
Developed by an IBCLC, this kit helps moms find the right flange size from 13/15/17/19/21mm. It supports improved comfort and pumping efficiency from the start by reducing confusion around standard flanges. The 10-piece set fits most 24mm electric and manual pumps, noting not compatible with 27–28mm shields. Soft silicone ensures a gentle, secure fit for daily pumping, with a BPA-free construction.
Best for: mothers who want clinically informed sizing guidance and a soft, comfortable pumping experience. Choose this if you prefer guidance from a lactation professional-inspired design that prioritizes fit.
Caution: Not compatible with very large 27–28mm shields; confirm your flange size before buying.
Nuliie 5-in-1 Flange Sizing Kit
With five available sizes (12/14/16/18/20mm), this kit aims to maximize comfort and pumping efficiency across a broad range of 24mm flanges. Its soft silicone material is BPA-free and easy to sanitize, and the package includes a complimentary cleaning brush. Designed to reduce pumping time while supporting a comfortable fit, it’s a solid all-around option for daily use.
Best for: moms who want broad size coverage and an additional cleaning tool for convenience. Choose this if you pump with different flanges or need flexibility across multiple sessions.
Caution: Not compatible with 27–28mm shields; ensure your shield matches the 24mm standard before use.
Buying Guide: How To Choose The Right Flange Inserts
- Size range: Look for inserts that cover at least three sizes near your current flange. More sizes allow finer adjustment for comfort and milk flow.
- Compatibility: Confirm that the inserts fit your 24mm shields or flanges. Some models exclude 27–28mm shields or certain brands, so check the product notes.
- Material and safety: BPA-free, food-grade silicone is a common standard. Silicone tends to be softer and gentler on the nipple tunnel than hard plastic.
- Cleaning and maintenance: Choose inserts that are dishwasher-safe or easy to hand-wash. Regular cleaning ensures hygiene and performance, with a recommended replacement cadence.
- Ease of use: Kits with multiple sizes in a single package save time and help you quickly dial in the best fit without trial and error.
- Performance impact: A proper fit reduces rubbing, squeezing, and pain, which can improve milk flow and comfort over longer pumping sessions.
Frequently Asked Questions
- Do flange inserts work with all breast pumps? They’re designed to fit most 24mm shields, but always verify size compatibility with your specific model and shield diameter.
- How often should I replace flange inserts? Replacement every 1–2 months is common, or sooner if signs of wear appear or hygiene concerns arise.
- Are silicone inserts safe for babies? Yes, they are BPA-free and made from food-grade silicone, which is widely used in feeding products.
- Can I use inserts with manual breast pumps? Some inserts are designed for both electric and manual pumps; check the product description for compatibility.
- What is the benefit of using a sizing kit? A sizing kit helps you find the right fit, reducing discomfort and potentially increasing milk expression efficiency.
- What if my shield size is 27mm or larger? Many inserts are not compatible with 27–28mm shields; you may need a different shield size or a kit designed for larger flanges.