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49

glass brush

Skip it

Prices mostly outside the sweet spot ($3.35–$15.01) — this niche doesn't clear our bar today.

Market size 20Growth 35Conversion 92Competition 55Returns 94Price range 0Avg price 24Brand share 70Review moat 24Quality gap 47

Returns

Great1.0%

return rate — above 5% kills the launch gate

Conversion

Great11.2%

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

Brand share

Good63%

top-5 brand share — brands hold most of the demand

Competition

Good52%

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

Quality gap

Okay4.5★

avg incumbent rating — lower means beatable quality

Growth

Okay+8.2%

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

Review moat

Bad6,141.62

avg incumbent reviews — the moat a new listing must climb

Avg price

Bad$8.67

avg listing price — sweet spot $15–$100

Market size

Bad$80K

$80K/yr · 82K searches

Price range

Bad$3.35–$15.01

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

According to Flapen's Amazon United States niche tracking, glass brush is a $80K/yr Amazon United States market (82K searches/yr). The top 5 brands hold 63% of demand. Demand peaks in Jul–Sep. Verdict: Skip it — 49/100.

Data updated Jul 12, 2026 · scored weekly · How we score niches

glass brush market data

Units sold / yr
8K–10K
avg 250–500/product
Revenue / yr
$69K–$87K
units × avg price
Conversion rate
11.2%
Avg BSR
#130
Page quality
0%
Prime
100%
Sponsored
88%
Out of stock
0.0%
Avg brand age
47 months
Avg seller age
170 days

Competition & brand share

The top 5 products take 52% of clicks — established leaders, but buyers still shop beyond them.

Brands

20 falling

Sellers

27

Top-5 brand share

63%

Top 20: 100%

Top-5 click share

52%

Top 20: 93%

Open market

33%

  • ALINK27%
  • Holikme12%
  • HIWARE11%
  • MOSOLAN9%
  • CENGNIAN4%
  • Haomaomao4%

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — +8.2% search growth over the last 90 days.
3K2KSpike '24Spike '25Spike '26SepDecMarJunAugNovMarMay

Peak months: Jul, Sep · busiest ÷ quietest = 1.7×

Top glass brush search terms

  • skinny bottle brush12K/yr
  • thin bottle brush11K/yr
  • flexible bottle brush9K/yr
  • long bottle brush for narrow neck bottle7K/yr
  • narrow neck bottle brush5K/yr
  • narrow bottle brush for narrow neck bottle7K/yr
  • small bottle brushes4K/yr
  • bottle brushes for cleaning narrow neck4K/yr
  • wine bottle cleaning brush4K/yr
  • thin bottle brushes long handle4K/yr
All search terms

Top glass brush products on Amazon

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

0%5%$4K10%$8K15%$12K20%$16K101001K10K100K Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 24 tracked products in this niche — three views at once, no toggling.

What buyers say about glass brush

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

What buyers love

Ease Of Cleaning27%

“Easy cleanup”

Quality-Overall13%

“Excellent product”

Advertised Vs Actual Product12%

“Exactly as pictured”

Value For Money10%

“They are affordable”

Size-Overall9%

“Correct Size”

Efficiency4%

“A lot of different bottle brushes like the variety and works well”

Ease Of Use4%

“Easy Use”

Durability3%

“hold up very well”

Strength3%

“Great buy, sturdy brushes”

Brush Quality2%

“Brush”

What buyers complain about

Ease Of Cleaning16%

“not clean”

Size-Overall14%

“Too Short”

Quality-Overall12%

“quality control could be better”

Durability9%

“Broke first use”

Strength7%

“flimsy product”

Advertised Vs Actual Product5%

“not as advertised”

Value For Money4%

“Cheap price”

Functionality-Overall3%

“Either way, doesnt do the job”

Ease Of Use2%

“hard to use”

Material Quality2%

“cheap material”

Top return reasons

Size-Overall57%
Advertised Vs Actual Product10%
Quality-Overall8%
Functionality-Overall3%
Strength2%
Value For Money2%
Defective Material/Parts2%
Material Quality2%
Ease Of Cleaning2%
Cleaning Modes2%

Common questions

Is glass brush profitable to sell on Amazon United States?
The niche generates $80K/yr across 26 tracked products. 1 of 2 products launched in the last 360 days are still selling. 90-day search growth is +8.2%. Flapen's verdict: Skip it (49/100).
How competitive is the glass brush niche?
20 brands and 27 sellers compete. The top 5 products take 52% of clicks and top 5 brands hold 63% of demand.
What do buyers complain about in glass brush?
Top complaints mined from reviews: Ease Of Cleaning, Size-Overall, Quality-Overall. The return rate is 1.0%.
When does demand for glass brush peak?
Demand peaks in Jul–Sep; the busiest month runs 1.7× the quietest.
What does it cost to enter the glass brush niche?
Listings span $3.35–$15.01; the average listing price is $8.67 (sweet spot $15–$100). The average incumbent carries 6,142 reviews — the moat a new listing must climb.