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39

nainley teething roller

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A small market ($0/yr) — this niche doesn't clear our bar today.

Market size 0Growth 0Conversion 0Competition 38Returns 100Price range 62Avg price 77Brand share 44Review moat 42Quality gap 97

Returns

Incredible0.1%

return rate — above 6% kills the launch gate

Quality gap

Incredible3.8★

avg incumbent rating — lower means beatable quality

Avg price

Great$15.66

avg listing price — sweet spot $15–$100

Price range

Good$10.59–$22.19

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

Brand share

Okay79%

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

Review moat

Okay2,286.94

avg incumbent reviews — the moat a new listing must climb

Competition

Okay62%

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

Market size

Bad$0

$0/yr · 43K searches

Growth

Bad-55.9%

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

Conversion

Bad0.0%

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

Competition

The top 5 products take 62% of clicks — established leaders, but buyers still shop beyond them.

Brands

13

Sellers

56

Top-5 brand share

79%

Open market

17%

  • Nainley30%
  • MVC19%
  • ZL7QHSE12%
  • COLOTTE10%
  • Generic8%
  • PLENNY5%
  • Open — no brand owns it (7 brands, 17%)

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%5%$010%$015%$020%$01101001K10K100K Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 18 tracked products in this niche — three views at once, no toggling.

Demand

Weekly Amazon search volume, last 31 weeks — -55.9% search growth over the last 90 days.
2K1KSpike '26Dec '25Jan '26Feb '26Mar '26Apr '26May '26