51
metal valve stems
Worth a lookShows searches that convert (7.7% search→purchase), but a small market ($66K/yr) keeps it on the watch list.
Conversion
Great7.7%search→purchase rate — share of searches ending in a sale
Avg price
Great$15.55avg listing price — sweet spot $15–$100
Price range
Great$6.00–$41.46cheapest to priciest tracked listing — scored on the share inside $15–$100
Review moat
Good660.14avg incumbent reviews — the moat a new listing must climb
Returns
Good2.4%return rate — above 5% kills the launch gate
Brand share
Good70%top-5 brand share — brands hold most of the demand
Competition
Good52%top-5 click share — leaders hold, buyers still browse
Growth
Okay+14.9%90-day search growth — must beat 0% to launch
Quality gap
Okay4.6★avg incumbent rating — lower means beatable quality
Market size
Bad$66K$66K/yr · 55K searches