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master cylinder
Worth a lookShows a thin review moat (153 avg reviews), but brand-locked demand (top 5 brands take 93% of clicks) keeps it on the watch list.
Review moat
Great152.7avg incumbent reviews — the moat a new listing must climb
Avg price
Great$53.48avg listing price — sweet spot $15–$100
Quality gap
Great4.3★avg incumbent rating — lower means beatable quality
Market size
Good$805K$805K/yr · 697K searches
Price range
Good$12.23–$136.28cheapest to priciest tracked listing — scored on the share inside $15–$100
Competition
Good46%top-5 click share — leaders hold, buyers still browse
Growth
Okay+2.1%90-day search growth — must beat 0% to launch
Conversion
Okay2.2%search→purchase rate — share of searches ending in a sale
Returns
Bad7.4%return rate — above 5% kills the launch gate
Brand share
Bad93%top-5 brand share — brand-locked demand