motif luna flanges
Skip itA small market ($49K/yr) — this niche doesn't clear our bar today.
Avg price
Great$19.05avg listing price — sweet spot $15–$100
Quality gap
Great4.2★avg incumbent rating — lower means beatable quality
Price range
Great$6.98–$58.56cheapest to priciest tracked listing — scored on the share inside $15–$100
Review moat
Good757.68avg incumbent reviews — the moat a new listing must climb
Conversion
Good4.5%search→purchase rate — share of searches ending in a sale
Growth
Good+20.4%90-day search growth — must beat 0% to launch
Returns
Okay3.3%return rate — above 6% kills the launch gate
Competition
Okay59%top-5 click share — leaders hold, buyers still browse
Brand share
Bad92%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.
All 25 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
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$24.474.3★135 rev
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$10.054.6★2,006 rev
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$9.684.6★4,179 rev
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$9.904.5★635 rev
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$55.794.7★182 rev
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
Wevedk$7.925 rev
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$58.5615 rev
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$9.90445 rev
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$35.341 rev
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$7.8144 rev
Trending
90-day click momentum6pcs 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$7.924.7★
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$9.904.5★
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$35.341.0★
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$7.814.8★
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$58.562.1★
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — +20.4% search growth over the last 90 days.Peak months: Sep · busiest ÷ quietest = 1.6×
Reviews
What buyers praise and complain about, mined from review topics.What buyers love
“Stays in place perfectly”
“Its a practical and well-made product”
“So comfortable”
“The kit was somewhat easy to use for the most part”
“Good product for price”
“The little cleaning sponge is wonderful”
“Does the job as advertised”
“Very helpful and useful for breastfeeding”
“durable”
“Compatible with Frida Mom manual pump”
What buyers complain about
“Does NOT fit”
“are not the same quality as the originals”
“Not compatible with Spectra”
“one of the flange inserts tore right apart immediately after opening”
“Flanges began not sealing and leaking”
“Very uncomfortable”
“Inconsistent Quality/Material”
“So bought these being cheap”
“Doesnt work”
“they are kind of a pain to insert and clean and the output isnt as good as just using the correct size pump accessory”