lacteck flange silicone
Skip itA concentrated shelf (top 5 take 93% of clicks) — this niche doesn't clear our bar today.
Avg price
Great$21.37avg listing price — sweet spot $15–$100
Price range
Great$10.05–$41.19cheapest to priciest tracked listing — scored on the share inside $15–$100
Quality gap
Great4.2★avg incumbent rating — lower means beatable quality
Returns
Good2.4%return rate — above 6% kills the launch gate
Review moat
Good1,179.29avg incumbent reviews — the moat a new listing must climb
Market size
Okay$115K$115K/yr · 449K searches
Growth
Bad-16.8%90-day search growth — must beat 0% to launch
Conversion
Bad1.2%search→purchase rate — share of searches ending in a sale
Brand share
Bad97%top-5 brand share — brand-locked demand
Competition
Bad93%top-5 click share — a locked-up shelf
Competition
The top 5 products capture 93% of clicks — a locked-up shelf that new listings rarely crack.Brands
6 falling
Sellers
11
Top-5 brand share
97%
Open market
0%
- Pumpin' Pal55%
- Legendairy Milk28%
- Nursi Luna5%
- Maymom5%
- Momcozy4%
- Elvie4%
- Open — no brand owns it (0%)
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 7 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Pumpin Pal X-Small Silicone Angled Breast Pump Flange Pair 2026 Design with Suction Sealing Rings Made in U.S.A.
Pumpin' Pal$24.283.0★2 rev
Legendairy Milk Duckbill Valves with Pull Tab - Compatible with Spectra S1 S2 9 Plus Medela Motif Baby Buddha & Zomee - Duckbill Valve Replacement Pump Parts BPA Free Silicone 6 Pack
Legendairy Milk$11.764.4★1,673 rev
Legendairy Milk Pumping Spray 4 oz. Helps Sore Nipples & Clogged Ducts Organic Lubricant for Breast Shields and Flanges Vegan Breast Pump Spray Natural & Lanolin-Free Made in USA
Legendairy Milk$24.774.5★1,557 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
Maymom Widemouth Connector 2pc Compatible w Spectra S1 Spectra S2 Pump; Compatible with Medela PersonalFit Shield Pumpin Pal Shield Lansinoh Flange Maymom MyFit Shields MyFit Crater Shield
Maymom$17.364.7★1,840 rev
Newest
by launch datePumpin Pal X-Small Silicone Angled Breast Pump Flange Pair 2026 Design with Suction Sealing Rings Made in U.S.A.
Pumpin' Pal$24.282 rev
Momcozy 999 Silver Nursing Cups Original Perforated Breathable Design 999 Silver Nipple Cover for Breastfeeding Essential Nipple Shield for Nursing Newborn Metal Nipple Shields Regular Size
Momcozy$41.19691 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$10.052,006 rev
Legendairy Milk Pumping Spray 4 oz. Helps Sore Nipples & Clogged Ducts Organic Lubricant for Breast Shields and Flanges Vegan Breast Pump Spray Natural & Lanolin-Free Made in USA
Legendairy Milk$24.771,557 rev
Elvie Nipple Cushions 17mm | Soft-Silicone Nipple Cushions to Enhance fit for Improved Comfort and Efficiency (2 Pack)
Elvie$20.20486 rev
Trending
90-day click momentumPumpin Pal X-Small Silicone Angled Breast Pump Flange Pair 2026 Design with Suction Sealing Rings Made in U.S.A.
Pumpin' Pal$24.283.0★
Momcozy 999 Silver Nursing Cups Original Perforated Breathable Design 999 Silver Nipple Cover for Breastfeeding Essential Nipple Shield for Nursing Newborn Metal Nipple Shields Regular Size
Momcozy$41.194.3★
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★
Maymom Widemouth Connector 2pc Compatible w Spectra S1 Spectra S2 Pump; Compatible with Medela PersonalFit Shield Pumpin Pal Shield Lansinoh Flange Maymom MyFit Shields MyFit Crater Shield
Maymom$17.364.7★
Elvie Nipple Cushions 17mm | Soft-Silicone Nipple Cushions to Enhance fit for Improved Comfort and Efficiency (2 Pack)
Elvie$20.204.2★
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — -16.8% search growth over the last 90 days.Peak months: May · busiest ÷ quietest = 1.7×
Reviews
What buyers praise and complain about, mined from review topics.What buyers love
“Perfect side and same quality with my breast pump”
“Its easy to put on”
“good variety of sizes”
“Easy to clean”
“Worth it”
“Love the color”
“very comfortable”
“they are pretty durable”
“Amazing product for breastfeeding moms”
“Gets the job done”
What buyers complain about
“They all leak”
“Expensive”
“They are too big”
“Very uncomfortable”
“Smells like straight cigarettes disgusting”
“when I was drying them after a clean they bent easily”
“Poor Quality”
“The packaging appeared brand new”
“Why did these come dirty”
“Did not work at all for me - terrible product”