---
title: "motif luna flanges — Niche Verdict: Skip it (48/100) | Amazon United States - Flapen"
canonical_url: "https://flapen.com/amazon/research/us/baby-products/motif-luna-flanges"
last_updated: "2026-07-14T05:13:52.273Z"
locale: en
meta:
  description: "a small market ($49K/yr) — motif luna flanges doesn't clear our bar today."
  "og:description": "a small market ($49K/yr) — motif luna flanges doesn't clear our bar today."
  "og:title": "motif luna flanges — Niche Verdict: Skip it (48/100) | Amazon United States - Flapen"
---

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# **motif luna flanges**

**Skip it**

A small market ($49K/yr) — this niche doesn't clear our bar today.

Market size 12Growth 50Conversion 55Competition 44Returns 47Price range 83Avg price 85Brand share 21Review moat 69Quality gap 84

**Avg price**

**Great****$19.05**

avg listing price — sweet spot $15–$100

**Quality gap**

**Great****4.2★**

avg incumbent rating — lower means beatable quality

**Price range**

**Great****$6.98–$58.56**

cheapest to priciest tracked listing — scored on the share inside $15–$100

**Review moat**

**Good****757.68**

avg incumbent reviews — the moat a new listing must climb

**Conversion**

**Good****4.5%**

search→purchase rate — share of searches ending in a sale

**Growth**

**Good****+20.4%**

90-day search growth — must beat 0% to launch

**Returns**

**Okay****3.3%**

return rate — above 6% kills the launch gate

**Competition**

**Okay****59%**

top-5 click share — leaders hold, buyers still browse

**Brand share**

**Bad****92%**

top-5 brand share — brand-locked demand

**Market size**

**Bad****$49K**

$49K/yr · 56K searches

## **Competition**

The top 5 products take 59% of clicks — established leaders, but buyers still shop beyond them.

**Brands**

**7 **▼falling

**Sellers**

**10**

**Top-5 brand share**

**92%**

**Open market**

**3%**

- eufy Security39% - Nursi Luna18% - BDICOVE16% - Nuliie12% - IVARONAL6% - Wevedk5% - Open — no brand owns it (1 brand, 3%)

## **Product shelf**

Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.

0%5%$2K10%$5K15%$7K20%$10K1101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales

Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 25 tracked products in this niche — three views at once, no toggling.

### **Top sellers**

by 90-day click share

[1![eufy Security Original 15mm Sizing Inserts (2-Pack) for Wearable Breast Pump S1/S1 Pro/E10/E20 Silicone Sizing Inserts Easy to Install and Use Comfortable and Precise Fit for Better Suction](https://m.media-amazon.com/images/I/11kspg77vDL.jpg)**eufy Security Original 15mm Sizing Inserts (2-Pack) for Wearable Breast Pump S1/S1 Pro/E10/E20 Silicone Sizing Inserts Easy to Install and Use Comfortable and Precise Fit for Better Suction**eufy Security**$24.47**4.3★135 rev](https://www.amazon.com/dp/B0DBZH6Y8P) [2![Nursi Luna Flange Inserts 10PCS 13/15/17/19/21mm for 24mm Flanges/Shield of Most Pumps Flange Sizing Kit Silicone Flanges Insert Breastfeeding Essentials Kit for New Moms](https://m.media-amazon.com/images/I/415xYbVux6L.jpg)**Nursi Luna Flange Inserts 10PCS 13/15/17/19/21mm for 24mm Flanges/Shield of Most Pumps Flange Sizing Kit Silicone Flanges Insert Breastfeeding Essentials Kit for New Moms**Nursi Luna**$10.05**4.6★2,006 rev](https://www.amazon.com/dp/B0CKZH37FX) [3![Nuliie 3-in-1 Flange Sizing Kit 13/15/17/19/21mm for 24mm Electric Double Breast Pump Flange/Shield 10PCS Silicone Flange Inserts to Boost Pumping Efficiency & Comfort BPA-Free Essential for Moms](https://m.media-amazon.com/images/I/41Feyi97wML.jpg)**Nuliie 3-in-1 Flange Sizing Kit 13/15/17/19/21mm for 24mm Electric Double Breast Pump Flange/Shield 10PCS Silicone Flange Inserts to Boost Pumping Efficiency & Comfort BPA-Free Essential for Moms**Nuliie**$9.68**4.6★4,179 rev](https://www.amazon.com/dp/B0CMPBBHMZ) [4![10PCS Breast Pump Flange Insert Kit - 14/16/18/20/22mm*2pc for Momcozy M5/M9/M6/S12 Pro/V1 pro/V2 pro Spectra S1/S2 Eufy E10/S1 Pro Medela/Elvie/Lansinoh/Paruu P10 Breast Pump Wearable Pumps](https://m.media-amazon.com/images/I/41+kETehHsL.jpg)**10PCS Breast Pump Flange Insert Kit - 14/16/18/20/22mm*2pc for Momcozy M5/M9/M6/S12 Pro/V1 pro/V2 pro Spectra S1/S2 Eufy E10/S1 Pro Medela/Elvie/Lansinoh/Paruu P10 Breast Pump Wearable Pumps**BDICOVE**$9.90**4.5★635 rev](https://www.amazon.com/dp/B0DS6WPSHK) [5![eufy Security Original 24mm Flange (2-Pack) Replacement Accessories for Wearable Breast Pump E20/S1/S1 Pro HeatFlow Technology Food-Grade Silicone Durable Comfortable Ergonomic Fit](https://m.media-amazon.com/images/I/21Pbls6tjtL.jpg)**eufy Security Original 24mm Flange (2-Pack) Replacement Accessories for Wearable Breast Pump E20/S1/S1 Pro HeatFlow Technology Food-Grade Silicone Durable Comfortable Ergonomic Fit**eufy Security**$55.79**4.7★182 rev](https://www.amazon.com/dp/B0D72ZHX7K)

**~~View all top sellers →~~**

### **Newest**

by launch date

[![6pcs Flange Insert 21mm Compatible with eufy S1 pro/S1/E20/E10 Wearable Breast Pump 21mm Flange Sizing Kit for eufy Pump BPA Free Silicone Comfortable and Precise Fit for Better Suction](https://m.media-amazon.com/images/I/31t3OhSoIyL.jpg)**6pcs Flange Insert 21mm Compatible with eufy S1 pro/S1/E20/E10 Wearable Breast Pump 21mm Flange Sizing Kit for eufy Pump BPA Free Silicone Comfortable and Precise Fit for Better Suction**Wevedk**$7.92**5 rev3mo ago](https://www.amazon.com/dp/B0GTZ2TXDF) [![2 Set Overall Pump Parts and 6pcs 17/19/21mm Flange Insert for eufy E20/S1/S1 Pro Pump Including Non-Heated 24mm Flange Collector Valves Diaphragms 17/19/21mm Inserts 2 Overall-Non-Heated](https://m.media-amazon.com/images/I/41M2LvFOYEL.jpg)**2 Set Overall Pump Parts and 6pcs 17/19/21mm Flange Insert for eufy E20/S1/S1 Pro Pump Including Non-Heated 24mm Flange Collector Valves Diaphragms 17/19/21mm Inserts 2 Overall-Non-Heated**Wevedk**$58.56**15 rev5mo ago](https://www.amazon.com/dp/B0GJRVCPT8) [![Nuliie 5-in-1 Flange Sizing Kit 12/14/16/18/20mm for 24mm Flange/Shield of Most Pumps 10PCS Silicone Flange Inserts to Boost Pumping Efficiency & Comfort BPA-Free Pump Essential for Moms](https://m.media-amazon.com/images/I/51GT53yIMsL.jpg)**Nuliie 5-in-1 Flange Sizing Kit 12/14/16/18/20mm for 24mm Flange/Shield of Most Pumps 10PCS Silicone Flange Inserts to Boost Pumping Efficiency & Comfort BPA-Free Pump Essential for Moms**Nuliie**$9.90**445 rev5mo ago](https://www.amazon.com/dp/B0GJRV3N1Q) [![2pcs Non-Heated 24mm Flange Replacement Compatible with Eufy E20/S1/S1 Pro Wearable Breast Pump Food-Grade Silicone Durable Comfortable Replaced for eufy Pump Flange](https://m.media-amazon.com/images/I/31aoferra-L.jpg)**2pcs Non-Heated 24mm Flange Replacement Compatible with Eufy E20/S1/S1 Pro Wearable Breast Pump Food-Grade Silicone Durable Comfortable Replaced for eufy Pump Flange**Wevedk**$35.34**1 rev5mo ago](https://www.amazon.com/dp/B0GJS277NX) [![10PC Flange Insert 13/15/17/19/21mm*2 Compatible with eufy S1 Pro/S1/E20/E10 Wearable Pump for Momcozy/Spectra/Medela/Elvie/Lansinoh/Paruu with 24mm Flange/Shield Pump](https://m.media-amazon.com/images/I/31-iI3zhtyL.jpg)**10PC Flange Insert 13/15/17/19/21mm*2 Compatible with eufy S1 Pro/S1/E20/E10 Wearable Pump for Momcozy/Spectra/Medela/Elvie/Lansinoh/Paruu with 24mm Flange/Shield Pump**Wevedk**$7.81**44 rev7mo ago](https://www.amazon.com/dp/B0G2Y4J1PM)

**~~View all new products →~~**

### **Trending**

90-day click momentum

[![6pcs Flange Insert 21mm Compatible with eufy S1 pro/S1/E20/E10 Wearable Breast Pump 21mm Flange Sizing Kit for eufy Pump BPA Free Silicone Comfortable and Precise Fit for Better Suction](https://m.media-amazon.com/images/I/31t3OhSoIyL.jpg)**6pcs Flange Insert 21mm Compatible with eufy S1 pro/S1/E20/E10 Wearable Breast Pump 21mm Flange Sizing Kit for eufy Pump BPA Free Silicone Comfortable and Precise Fit for Better Suction**Wevedk**$7.92**4.7★**▲ 154%**](https://www.amazon.com/dp/B0GTZ2TXDF) [![Nuliie 5-in-1 Flange Sizing Kit 12/14/16/18/20mm for 24mm Flange/Shield of Most Pumps 10PCS Silicone Flange Inserts to Boost Pumping Efficiency & Comfort BPA-Free Pump Essential for Moms](https://m.media-amazon.com/images/I/51GT53yIMsL.jpg)**Nuliie 5-in-1 Flange Sizing Kit 12/14/16/18/20mm for 24mm Flange/Shield of Most Pumps 10PCS Silicone Flange Inserts to Boost Pumping Efficiency & Comfort BPA-Free Pump Essential for Moms**Nuliie**$9.90**4.5★**▲ 154%**](https://www.amazon.com/dp/B0GJRV3N1Q) [![2pcs Non-Heated 24mm Flange Replacement Compatible with Eufy E20/S1/S1 Pro Wearable Breast Pump Food-Grade Silicone Durable Comfortable Replaced for eufy Pump Flange](https://m.media-amazon.com/images/I/31aoferra-L.jpg)**2pcs Non-Heated 24mm Flange Replacement Compatible with Eufy E20/S1/S1 Pro Wearable Breast Pump Food-Grade Silicone Durable Comfortable Replaced for eufy Pump Flange**Wevedk**$35.34**1.0★**▲ 132%**](https://www.amazon.com/dp/B0GJS277NX) [![10PC Flange Insert 13/15/17/19/21mm*2 Compatible with eufy S1 Pro/S1/E20/E10 Wearable Pump for Momcozy/Spectra/Medela/Elvie/Lansinoh/Paruu with 24mm Flange/Shield Pump](https://m.media-amazon.com/images/I/31-iI3zhtyL.jpg)**10PC Flange Insert 13/15/17/19/21mm*2 Compatible with eufy S1 Pro/S1/E20/E10 Wearable Pump for Momcozy/Spectra/Medela/Elvie/Lansinoh/Paruu with 24mm Flange/Shield Pump**Wevedk**$7.81**4.8★**▲ 90%**](https://www.amazon.com/dp/B0G2Y4J1PM) [![2 Set Overall Pump Parts and 6pcs 17/19/21mm Flange Insert for eufy E20/S1/S1 Pro Pump Including Non-Heated 24mm Flange Collector Valves Diaphragms 17/19/21mm Inserts 2 Overall-Non-Heated](https://m.media-amazon.com/images/I/41M2LvFOYEL.jpg)**2 Set Overall Pump Parts and 6pcs 17/19/21mm Flange Insert for eufy E20/S1/S1 Pro Pump Including Non-Heated 24mm Flange Collector Valves Diaphragms 17/19/21mm Inserts 2 Overall-Non-Heated**Wevedk**$58.56**2.1★**▲ 84%**](https://www.amazon.com/dp/B0GJRVCPT8)

**~~View all trending →~~**

## **Demand & seasonality**

Weekly Amazon search volume, last 104 weeks — +20.4% search growth over the last 90 days.

4K3KSpike '24Holiday '25Spike '26 seasonSepDecMarJunAugNovMarMay

Peak months: Sep · busiest ÷ quietest = 1.6×

## **Reviews**

What buyers praise and complain about, mined from review topics.

### **What buyers love **

**Size-Overall**36%

*“Stays in place perfectly”*

**Quality-Overall**12%

*“Its a practical and well-made product”*

**Comfort-Overall**9%

*“So comfortable”*

**Ease Of Use**7%

*“The kit was somewhat easy to use for the most part”*

**Value For Money**7%

*“Good product for price”*

**Ease Of Cleaning**5%

*“The little cleaning sponge is wonderful”*

**Advertised Vs Actual Product**5%

*“Does the job as advertised”*

**Breastfeeding Friendly**4%

*“Very helpful and useful for breastfeeding”*

**Durability**2%

*“durable”*

**Compatibility-Overall**2%

*“Compatible with Frida Mom manual pump”*

### **What buyers complain about **

**Size-Overall**25%

*“Does NOT fit”*

**Quality-Overall**8%

*“are not the same quality as the originals”*

**Compatibility-Overall**6%

*“Not compatible with Spectra”*

**Durability**5%

*“one of the flange inserts tore right apart immediately after opening”*

**Leak-Proof**5%

*“Flanges began not sealing and leaking”*

**Comfort-Overall**5%

*“Very uncomfortable”*

**Material Quality**4%

*“Inconsistent Quality/Material”*

**Value For Money**3%

*“So bought these being cheap”*

**Functionality-Overall**3%

*“Doesnt work”*

**Ease Of Cleaning**3%

*“they are kind of a pain to insert and clean and the output isnt as good as just using the correct size pump accessory”*

### **Top return reasons **

**Size-Overall**57%

**Functionality-Overall**8%

**Advertised Vs Actual Product**6%

**Defective Material/Parts**5%

**Material Quality**3%

**Value For Money**3%

**Comfort-Overall**3%

**Breastfeeding Friendly**3%

**Compatibility-Overall**2%

**Product Condition**2%