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メジャー 100m

メジャー 100m clears our launch bar: a $4.9M/yr market growing +9.5% this quarter with returns at 0.5%.

Flapen Score

62
Launch it

Top 25% of 4,191 DIY・工具・ガーデン niches · +5 vs the category median of 57

Market size 97Growth 37Conversion 72Competition 34Returns 97Price range 0Avg price 0Brand share 67Review moat 85Quality gap 94
This niche Category average · 4,191 niches

Is メジャー 100m profitable on Amazon?

According to Flapen's Amazon Japan niche tracking, メジャー 100m is a ¥4.9M/yr Amazon Japan market (20K searches/yr). The top 5 brands hold 65% of demand. Verdict: Launch it — 62/100.

メジャー 100m: the Amazon niche in one read

Everything a seller checks before entering, in three answers.

Is the demand real?

Yes. Search demand moved +9.5% over the last 90 days and 6.6% of searches end in a purchase.

¥4.9M

revenue / yr

Units sold / yr2K
Search volume / yr+9.5%20K
Conversion rate6.6%
Avg price¥3754.24

Who owns the niche?

The top 5 brands hold 65% of demand, so 35% of the market is open.

35%

open market share

Brands · sellers18 · 61
Top-5 product click share65%
Open market35%
Avg brand age62 months

Is there a way in?

Listing quality. The average product page scores 0/100 on content standards. Incumbents average 4.0★ — the gap to enter on.

0/100

page quality · 20 products

Sponsored placement75%
New entrants (1y)4· 2 succeeded
Avg rating4.0★
Avg reviews296

Top メジャー 100m products & what they sell for

Every tracked product — its share of the shelf, its review moat, and what it sells for.

Competition: brands, sellers & click share

The top 5 products take 65% of clicks — established leaders, but buyers still shop beyond them.

¥0¥492K¥985K¥1.5M¥2.0M1101001K10K Review Count Sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

Brands

18 flat

Sellers

61

Top-5 brand share

65%

Top 20: 100%

Top-5 click share

65%

Top 20: 100%

Open market

29%

  • Amazonベーシック(Amazon Basics)21%
  • Krovat15%
  • Charmoon12%
  • Komelon9%
  • 近与(KONYO)8%
  • ヤマヨ測定機(Yamayo Sokuteiki)6%

メジャー 100m demand & seasonality

Weekly search volume, with the niche's key stats alongside.

Volume20KCVR6.6%Products20Brands18Top 5 Brands65%OOS Rate7.4%Rating4.0★Reviews296Avg BSR#157
600400Spike '24Holiday '24Spike '25Spike '26SepDecMarJunAugNovMarMay

No pronounced peak months · busiest ÷ quietest = 1.5×

Top メジャー 100m search terms shoppers use

The exact queries shoppers type, with yearly volume, growth and conversion.

  • メジャー 100m11K/yr
  • 100mメジャー5K/yr
  • 巻き尺 100m3K/yr

What reviews say buyers love and hate about メジャー 100m

What buyers mention most, as a share of all reviews.

What buyers love

98% of reviews
使用の容易さ49%

あれば便利

強さ12%

丈夫そうです。

総合品質12%

ちょうど良いサイズで、動きもスムーズ。いい品と思います。

コストパフォーマンス11%

コスパいい!

軽い6%

軽い、壊れにくい、バッグ付きで満足。

What buyers complain about

92% of reviews
サイズ全体19%

おおきさ. 直径15cmなので、直径10cm製よりも安心感がある

商品の状態13%

中古品です。

耐久性13%

すぐに壊れた。メジャーもすぐに切れました。

不良材料/部品13%

不良品

強さ13%

ただ頑丈には出来ていないので、寿命は短いと思います。

メジャー 100m return rate & reasons

Why buyers send it back, as a share of all return requests.

0.5%

Return rate

0%

Fixable by listing

The "fixable" share counts expectation-mismatch reasons — size, look, advertised-vs-actual — that better copy and images address.

1不良材料/部品
45%
2握り心地
10%
3広告と実際の製品の違い
10%
4総合品質
10%
5使用の容易さ
10%

Common メジャー 100m questions

The questions sellers ask about this niche, answered from the tracked metrics.

Flapen scores メジャー 100m 62/100 on Amazon Japan — Launch it. The niche generates ¥4.9M/yr across 20 tracked products. 2 of 4 products launched in the last 360 days are still selling. Search demand moved +9.5% over the last 90 days.
Search demand for メジャー 100m on Amazon Japan is steady year-round — the busiest month runs 1.5× the quietest.