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67

sds チャック

Launch it

A $2.2M/yr market growing +15.7% this quarter with returns at 0.8% — clears our launch bar.

Market size 95Growth 45Conversion 68Competition 65Returns 96Price range 0Avg price 0Brand share 65Review moat 83Quality gap 96

Quality gap

Incredible3.9★

avg incumbent rating — lower means beatable quality

Returns

Incredible0.8%

return rate — above 5% kills the launch gate

Market size

Incredible¥2.2M

¥2.2M/yr · 14K searches

Review moat

Great345.05

avg incumbent reviews — the moat a new listing must climb

Conversion

Good6.2%

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

Competition

Good46%

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

Brand share

Good66%

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

Growth

Okay+15.7%

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

Avg price

Bad¥2587.64

avg listing price — sweet spot $15–$100

Price range

Bad¥774.56–¥7830.33

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

According to Flapen's Amazon Japan niche tracking, sds チャック is a ¥2.2M/yr Amazon Japan market (14K searches/yr). The top 5 brands hold 66% of demand. Verdict: Launch it — 67/100.

Data updated Jul 31, 2026 · scored weekly · How we score niches

sds チャック market data

Units sold / yr
500–750
avg 0–100/product
Revenue / yr
¥1.3M–¥1.9M
units × avg price
Conversion rate
6.2%
Avg BSR
#104
Page quality
0%
Prime
100%
Sponsored
65%
Out of stock
4.6%
Avg brand age
72 months
Avg seller age
163 days

Competition & brand share

The top 5 products take 46% of clicks — established leaders, but buyers still shop beyond them.

Brands

17 rising

Sellers

73

Top-5 brand share

66%

Top 20: 100%

Top-5 click share

46%

Top 20: 100%

Open market

34%

  • Bestgle21%
  • SK11(エスケー11)14%
  • lewaul12%
  • Wolfride8%
  • 角利産業(Kakuri Sangyo)5%
  • SOCOCO5%

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — +15.7% search growth over the last 90 days.
400300Spike '24Holiday '24Spike '25Spike '26SepDecMarJunAugNovMarMay

No pronounced peak months · busiest ÷ quietest = 1.4×

Top sds チャック products on Amazon

Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.

0%4%¥88K8%¥177K12%¥265K16%¥353K1101001K10K Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)1 product missing review or click data not plotted

All 20 tracked products in this niche — three views at once, no toggling.

What buyers say about sds チャック

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

What buyers love

使用の容易さ36%

“小型で便利ですが”

コストパフォーマンス25%

“この値段なので値段なりの物”

効率13%

“ただし精度が必要な作業はドリルドライバーを使った方が確実。”

総合品質10%

“良い商品です。”

ロック機構5%

“がっちり固定”

サイズ全体3%

“小型で便利ですが”

耐久性3%

“連続使用では耐久性は様子見”

What buyers complain about

耐久性30%

“直ぐ壊れました”

測定/読み取り精度20%

“ねじ山精度に問題あろ”

メカニズムの問題18%

“ホールの回転をとめる板のピンが早々に折れてホール回転が止められなくなりました。”

総合品質9%

“最悪な商品です”

機能全体9%

“電動ドリルではないと無理がきてシャフトが折れます。”

Top return reasons

接続性 - 全体15%
機能全体15%
不良材料/部品15%
サイズ全体15%
メカニズムの問題12%
ロック機構8%
商品の状態8%
互換性-全体8%
耐久性4%

Common questions

Is sds チャック profitable to sell on Amazon Japan?
The niche generates ¥2.2M/yr across 20 tracked products. 90-day search growth is +15.7%. Flapen's verdict: Launch it (67/100).
How competitive is the sds チャック niche?
17 brands and 73 sellers compete. The top 5 products take 46% of clicks and top 5 brands hold 66% of demand.
What do buyers complain about in sds チャック?
Top complaints mined from reviews: 耐久性, 測定/読み取り精度, メカニズムの問題. The return rate is 0.8%.
When does demand for sds チャック peak?
Demand is steady year-round — the busiest month runs 1.4× the quietest.
What does it cost to enter the sds チャック niche?
Listings span ¥774.56–¥7830.33; the average listing price is ¥2587.64 (sweet spot $15–$100). The average incumbent carries 345 reviews — the moat a new listing must climb.