Skip to content
56

glow in the dark markers

Worth a look

Shows beatable incumbent ratings (4.1★), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.

Market size 31Growth 51Conversion 50Competition 53Returns 77Price range 37Avg price 50Brand share 69Review moat 52Quality gap 89

Quality gap

Great4.1★

avg incumbent rating — lower means beatable quality

Returns

Great1.9%

return rate — above 6% kills the launch gate

Brand share

Good64%

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

Competition

Good53%

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

Review moat

Good1,410.95

avg incumbent reviews — the moat a new listing must climb

Growth

Good+22.1%

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

Conversion

Good4.0%

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

Avg price

Good$11.97

avg listing price — sweet spot $15–$100

Price range

Okay$3.47–$21.81

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

Market size

Okay$140K

$140K/yr · 292K searches

Competition

The top 5 products take 53% of clicks — established leaders, but buyers still shop beyond them.

Brands

17 rising

Sellers

29

Top-5 brand share

64%

Open market

30%

  • Pagather27%
  • Roizefar14%
  • TFIVE8%
  • Cra-Z-Art8%
  • FansArriche7%
  • SAKURA SOLID MARKER6%

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%10%$14K20%$28K30%$42K40%$56K101001K10K100K Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 21 tracked products in this niche — three views at once, no toggling.

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — +22.1% search growth over the last 90 days.
9K7KSpike '24Prime Day '25Spike '25Spike '26SepDecMarJunAugNovMarMay

Peak months: Oct, Nov · busiest ÷ quietest = 2.4×

Reviews

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

What buyers love

Color26%

“Great assortment of colors”

Quality-Overall11%

“Excellent product”

Value For Money6%

“reasonably priced”

Pen/Pencil Quality6%

“Excellent markers”

Ease Of Use5%

“Its easy to put on”

Brightness/Shine/Glow5%

“glows in the dark”

Fun/Entertainment Experience5%

“Really fun for kids”

Advertised Vs Actual Product4%

“As advertised”

Paint Quality3%

“Great paint set”

Nib/Tip Quality2%

“The tips are nice and good quality”

What buyers complain about

Color12%

“Colors are not correct”

Brightness/Shine/Glow12%

“Doesn't glow”

Quality-Overall7%

“Low quality”

Advertised Vs Actual Product6%

“False advertising”

Paint Quality5%

“difficult to paint with”

Functionality-Overall5%

“Didn't work”

Drying Time4%

“They seem dried out”

Dry/Empty Ink4%

“Markers are dry”

Durability3%

“Does not last”

Ease Of Use2%

“Difficult to use”

Top return reasons

Advertised Vs Actual Product18%
Paint Quality17%
Color9%
Functionality-Overall9%
Dry/Empty Ink6%
Brightness/Shine/Glow5%
Value For Money5%
Ink Refill4%
Size-Overall3%
Display Colors3%