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46

sliding door child lock

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Prices mostly outside the sweet spot ($6.40–$16.79) — this niche doesn't clear our bar today.

Market size 36Growth 70Conversion 85Competition 21Returns 39Price range 17Avg price 38Brand share 48Review moat 43Quality gap 47

Conversion

Great9.5%

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

Growth

Good+51.6%

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

Brand share

Okay76%

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

Quality gap

Okay4.5★

avg incumbent rating — lower means beatable quality

Review moat

Okay2,181.36

avg incumbent reviews — the moat a new listing must climb

Returns

Okay4.3%

return rate — above 6% kills the launch gate

Avg price

Okay$10.59

avg listing price — sweet spot $15–$100

Market size

Okay$175K

$175K/yr · 175K searches

Competition

Bad74%

top-5 click share — a locked-up shelf

Price range

Bad$6.40–$16.79

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

Competition

The top 5 products capture 74% of clicks — a locked-up shelf that new listings rarely crack.

Brands

13 falling

Sellers

18

Top-5 brand share

76%

Open market

20%

  • ZRFCXE38%
  • STERGDE16%
  • BurglaBar11%
  • WINONLY7%
  • Shop Square5%
  • Sdgina4%

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%10%$18K20%$35K30%$53K40%$70K101001K10K100K Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 14 tracked products in this niche — three views at once, no toggling.

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — +51.6% search growth over the last 90 days.
5K3KSpike '25Spike '26SepDecMarJunAugNovMarMay

Peak months: May, Jun, Jul · busiest ÷ quietest = 2.3×

Reviews

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

What buyers love

Assembly/Installation15%

“Easy to install”

Locking Mechanism12%

“easy to lock and unlock”

Ease Of Use12%

“Super easy to open”

Quality-Overall9%

“Amazing quality”

Strength7%

“Worked well and surprisingly strong hold”

Advertised Vs Actual Product7%

“product as advertised”

Efficiency6%

“Very effective”

Security6%

“Very secure”

Value For Money5%

“Great value”

Durability3%

“This bar looks very nice, easy to put into place and use, and appears to be very durable and long-lasting”

What buyers complain about

Durability18%

“Broke within an hour”

Functionality-Overall7%

“the functionality isn't great”

Size-Overall7%

“Small”

Adhesion/Stickiness6%

“Adhesive sucks”

Thickness6%

“Too thick to fit on a standard American sliding door”

Strength5%

“Not Sturdy, returned same day”

Quality-Overall5%

“Product is poor quality and feels cheap”

Locking Mechanism5%

“the lock fell off on its own”

Ease Of Use5%

“which made it a bit cumbersome when taking it out”

Assembly/Installation3%

“it was a little confusing to install since the instructions were a bit lacking”

Top return reasons

Size-Overall46%
Compatibility-Overall11%
Functionality-Overall8%
Thickness7%
Advertised Vs Actual Product5%
Adhesion/Stickiness5%
Locking Mechanism4%
Defective Material/Parts2%
Strength2%
Value For Money2%