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posca pastel

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Brand-locked demand (top 5 brands take 100% of clicks) — this niche doesn't clear our bar today.

Market size 2Growth 16Conversion 44Competition 2Returns 91Price range 89Avg price 90Brand share 0Review moat 35Quality gap 16

Returns

Great1.2%

return rate — above 6% kills the launch gate

Avg price

Great$20.86

avg listing price — sweet spot $15–$100

Price range

Great$13.23–$38.50

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

Conversion

Okay3.5%

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

Review moat

Okay2,958.14

avg incumbent reviews — the moat a new listing must climb

Growth

Bad-17.5%

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

Quality gap

Bad4.7★

avg incumbent rating — lower means beatable quality

Market size

Bad$9K

$9K/yr · 12K searches

Competition

Bad97%

top-5 click share — a locked-up shelf

Brand share

Bad100%

top-5 brand share — brand-locked demand

Competition

The top 5 products capture 97% of clicks — a locked-up shelf that new listings rarely crack.

Brands

3 flat

Sellers

39

Top-5 brand share

100%

Open market

0%

  • posca83%
  • uni14%
  • 三菱鉛筆3%
  • 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.

0%15%$1K30%$3K45%$4K60%$5K101001K10K Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 7 tracked products in this niche — three views at once, no toggling.

Demand & seasonality

Weekly Amazon search volume, last 97 weeks — -17.5% search growth over the last 90 days.
800600Prime Day '24Spike '24Holiday '24Spike '25Prime Day '25Holiday '25Spike '26DecMarJunAugNovMarMay

Peak months: Dec · busiest ÷ quietest = 3.0×

Reviews

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

What buyers love

Color30%

“Beautiful colors”

Quality-Overall18%

“My daughter loves these Great quality markers”

Durability8%

“very durable”

Value For Money6%

“Got these at a great price”

Pen/Pencil Quality6%

“Nice markers”

Ease Of Use5%

“Easy to Use”

Drawing Experience4%

“Good for drawing and small details”

Design-Overall4%

“You can design your own ANYTHING”

Paint Quality2%

“Best paint markers around”

Soft Feel2%

“So smooth and fun to use”

What buyers complain about

Value For Money23%

“But it should be more cheaper”

Color9%

“Hard to find a good white”

Dry/Empty Ink6%

“Dried out”

Product Condition6%

“Must be an old set”

Durability6%

“then died so fast”

Drying Time6%

“The tips dry up quick”

Quality-Overall5%

“Quality is Average”

Leak-Proof3%

“tends to leak out instead of soaking into the tip of the marker”

Instructions/User Manual/Troubleshooting2%

“I just don't know how to use them”

Top return reasons

Value For Money14%
Color13%
Size-Overall9%
Product Condition8%
Paint Quality8%
Functionality-Overall7%
Dry/Empty Ink7%
Display Colors4%
Advertised Vs Actual Product4%
Ink Refill4%