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outline markers

Skip it

Soft demand (-67.2% this quarter) — this niche doesn't clear our bar today.

Market size 51Growth 0Conversion 60Competition 45Returns 92Price range 41Avg price 40Brand share 48Review moat 39Quality gap 58

Returns

Great1.2%

return rate — above 5% kills the launch gate

Conversion

Good5.2%

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

Quality gap

Good4.4★

avg incumbent rating — lower means beatable quality

Market size

Good$292K

$292K/yr · 517K searches

Brand share

Okay76%

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

Competition

Okay58%

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

Price range

Okay$4.61–$22.29

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

Avg price

Okay$10.80

avg listing price — sweet spot $15–$100

Review moat

Okay2,562.36

avg incumbent reviews — the moat a new listing must climb

Growth

Bad-67.2%

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

According to Flapen's Amazon United States niche tracking, outline markers is a $292K/yr Amazon United States market (517K searches/yr). The top 5 brands hold 76% of demand. Demand peaks in Jan–Nov–Dec. Verdict: Skip it — 46/100.

Data updated Jul 10, 2026 · scored weekly · How we score niches

outline markers market data

Units sold / yr
30K–40K
avg 1,000–1,250/product
Revenue / yr
$324K–$432K
units × avg price
Conversion rate
5.2%
Avg BSR
#277
Page quality
0%
Prime
100%
Sponsored
86%
Out of stock
10.6%
Avg brand age
42 months
Avg seller age
171 days

Competition & brand share

The top 5 products take 58% of clicks — established leaders, but buyers still shop beyond them.

Brands

16 falling

Sellers

22

Top-5 brand share

76%

Top 20: 100%

Top-5 click share

58%

Top 20: 92%

Open market

17%

  • OUNIY21%
  • YITHINC21%
  • DUULEMANG14%
  • PTAZSCTC12%
  • KOUSICOO9%
  • Aen Art7%
  • Open — no brand owns it (10 brands, 17%)

Demand & seasonality

Weekly Amazon search volume, last 100 weeks — -67.2% search growth over the last 90 days.
50K30KBlack Friday '24Holiday '24Spike '25Holiday '25Spike '26DecMarJunAugNovMarMay

Peak months: Jan, Nov, Dec · busiest ÷ quietest = 14.3×

Top outline markers search terms

  • outline markers188K/yr
  • outline shimmer markers44K/yr
  • outline pens41K/yr
  • outline markers self-outline metallic markers35K/yr
  • finenolo outline shimmer markers20K/yr
  • shimmer markers16K/yr
  • metallic outline markers12K/yr
  • outline marker12K/yr
  • outline pen20K/yr
  • double line markers10K/yr
All search terms

Top outline markers 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%4%$12K8%$23K12%$35K16%$47K101001K10K100K 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 outline markers

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

What buyers love

Color21%

“Fun colors”

Quality-Overall13%

“High quality, smooth with a lot of potential”

Fun/Entertainment Experience9%

“Fun for everyone”

Pen/Pencil Quality7%

“Excellent markers”

Value For Money7%

“Great value”

Advertised Vs Actual Product5%

“As Advertised”

Drawing Experience5%

“Great for drawing”

Writing Experience4%

“I love how smooth they write”

Ease Of Use3%

“Ease of use”

Brightness/Shine/Glow2%

“Very bright and magical”

What buyers complain about

Color19%

“Very muted colors”

Advertised Vs Actual Product8%

“Looks nothing like the photo”

Paper Quality6%

“bleed through paper very easily”

Dry/Empty Ink5%

“Arrived Dried Out”

Ink Leakage4%

“Ink came gushing out”

Moist/Dry4%

“they are all dry”

Leak-Proof4%

“Leaks”

Quality-Overall3%

“Substandard quality”

Functionality-Overall3%

“Not one worked”

Display Colors3%

“Does not show colors”

Top return reasons

Advertised Vs Actual Product17%
Color14%
Functionality-Overall10%
Display Colors7%
Dry/Empty Ink7%
Leak-Proof6%
Ink Refill6%
Value For Money5%
Product Condition3%
Size-Overall3%

Common questions

Is outline markers profitable to sell on Amazon United States?
The niche generates $292K/yr across 28 tracked products. 1 of 7 products launched in the last 360 days are still selling. 90-day search growth is -67.2%. Flapen's verdict: Skip it (46/100).
How competitive is the outline markers niche?
16 brands and 22 sellers compete. The top 5 products take 58% of clicks and top 5 brands hold 76% of demand.
What do buyers complain about in outline markers?
Top complaints mined from reviews: Color, Advertised Vs Actual Product, Paper Quality. The return rate is 1.2%.
When does demand for outline markers peak?
Demand peaks in Jan–Nov–Dec; the busiest month runs 14.3× the quietest.
What does it cost to enter the outline markers niche?
Listings span $4.61–$22.29; the average listing price is $10.80 (sweet spot $15–$100). The average incumbent carries 2,562 reviews — the moat a new listing must climb.