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kids knee support
Skip itPrices mostly outside the sweet spot ($4.43–$14.88) — this niche doesn't clear our bar today.
Quality gap
Great4.3★avg incumbent rating — lower means beatable quality
Conversion
Good6.8%search→purchase rate — share of searches ending in a sale
Brand share
Good69%top-5 brand share — brands hold most of the demand
Review moat
Good1,454.08avg incumbent reviews — the moat a new listing must climb
Returns
Okay3.1%return rate — above 5% kills the launch gate
Competition
Okay58%top-5 click share — leaders hold, buyers still browse
Avg price
Bad£8.36avg listing price — sweet spot $15–$100
Growth
Bad-5.0%90-day search growth — must beat 0% to launch
Market size
Bad£35K£35K/yr · 61K searches
Price range
Bad£4.43–£14.88cheapest to priciest tracked listing — scored on the share inside $15–$100
Signals Low Review Barrier