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prb-01

Skip it

A small market ($12K/yr) — this niche doesn't clear our bar today.

Market size 3Growth 13Conversion 12Competition 29Returns 96Price range 49Avg price 91Brand share 15Review moat 90Quality gap 88

Returns

Incredible0.8%

return rate — above 5% kills the launch gate

Avg price

Great$57.09

avg listing price — sweet spot $15–$100

Review moat

Great207.85

avg incumbent reviews — the moat a new listing must climb

Quality gap

Great4.1★

avg incumbent rating — lower means beatable quality

Price range

Okay$20.57–$183.11

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

Competition

Okay67%

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

Brand share

Bad94%

top-5 brand share — brand-locked demand

Growth

Bad-24.1%

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

Conversion

Bad1.0%

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

Market size

Bad$12K

$12K/yr · 21K searches

According to Flapen's Amazon United States niche tracking, prb-01 is a $12K/yr Amazon United States market (21K searches/yr). The top 5 brands hold 94% of demand. Demand peaks in Oct. Verdict: Skip it — 39/100.

Data updated Jul 31, 2026 · scored weekly · How we score niches

prb-01 market data

Units sold / yr
250–500
avg 0–100/product
Revenue / yr
$14K–$29K
units × avg price
Conversion rate
1.0%
Avg BSR
#986
Page quality
0%
Prime
100%
Sponsored
38%
Out of stock
28.3%
Avg brand age
30 months
Avg seller age
168 days

Competition & brand share

The top 5 products take 67% of clicks — established leaders, but buyers still shop beyond them.

Brands

7 rising

Sellers

51

Top-5 brand share

94%

Top 20: 100%

Top-5 click share

67%

Top 20: 100%

Open market

2%

  • BANDAI55%
  • Generic22%
  • CE7%
  • TCG Fabrik6%
  • MYCYBERSTASH4%
  • One Piece4%
  • Open — no brand owns it (1 brand, 2%)

Demand & seasonality

Weekly Amazon search volume, last 82 weeks — -24.1% search growth over the last 90 days.
700500Spike '25JanFebMarAprMayJunJulAugSepOctNovDecJanFebMarAprMayJunJul

Peak months: Oct · busiest ÷ quietest = 1.5×

Top prb-01 search terms

  • prb6K/yr
  • one piece prb-014K/yr
  • prb-015K/yr
  • one piece the best4K/yr
  • one piece the best booster box2K/yr
  • one piece prb-01 english509/yr
  • prb-01 english229/yr
All search terms

Top prb-01 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%10%$1K20%$2K30%$4K40%$5K1101001K10K Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 13 tracked products in this niche — three views at once, no toggling.

What buyers say about prb-01

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

What buyers love

Value For Money34%

“Worth the money”

Quality-Overall12%

“Looks to be well made”

Advertised Vs Actual Product11%

“Exactly what you expect”

Collectibles10%

“Decent cards”

Gifting Purpose9%

“Great gift”

Fun/Entertainment Experience9%

“Fun Experience”

Soft Feel7%

“Soft and comfortable”

Comfort-Overall3%

“comfortable”

Color1%

“the colors are vibrant”

Design-Overall1%

“Cool designs”

What buyers complain about

Value For Money62%

“also didnt get anything good in the packs for $74 kinda pricey”

Advertised Vs Actual Product8%

“FALSE ADVERTISING”

Gifting Purpose8%

“This was a gift and expensive”

Ethical Trade/Fair Trade8%

“This is a scam”

Quality-Overall8%

“Lacks true variety”

Size-Overall2%

“they are kind of tight”

Thigh Fit2%

“these are really tight on his legs”

Top return reasons

Size-Overall39%
Feet Fit28%
Material Quality11%
Thin11%
Value For Money11%

Common questions

Is prb-01 profitable to sell on Amazon United States?
The niche generates $12K/yr across 13 tracked products. 3 of 4 products launched in the last 360 days are still selling. 90-day search growth is -24.1%. Flapen's verdict: Skip it (39/100).
How competitive is the prb-01 niche?
7 brands and 51 sellers compete. The top 5 products take 67% of clicks and top 5 brands hold 94% of demand.
What do buyers complain about in prb-01?
Top complaints mined from reviews: Value For Money, Advertised Vs Actual Product, Gifting Purpose. The return rate is 0.8%.
When does demand for prb-01 peak?
Demand peaks in Oct; the busiest month runs 1.5× the quietest.
What does it cost to enter the prb-01 niche?
Listings span $20.57–$183.11; the average listing price is $57.09 (sweet spot $15–$100). The average incumbent carries 208 reviews — the moat a new listing must climb.