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63

マスカー 550

Worth a look

Shows a $8.1M/yr market, but a failed launch gate (market size, growth, or returns) keeps it on the watch list.

Market size 100Growth 24Conversion 57Competition 68Returns 99Price range 0Avg price 0Brand share 51Review moat 75Quality gap 96

Market size

Incredible¥8.1M

¥8.1M/yr · 31K searches

Returns

Incredible0.2%

return rate — above 5% kills the launch gate

Quality gap

Incredible3.9★

avg incumbent rating — lower means beatable quality

Review moat

Good518.47

avg incumbent reviews — the moat a new listing must climb

Competition

Good44%

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

Conversion

Good4.9%

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

Brand share

Good74%

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

Growth

Bad-2.8%

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

Avg price

Bad¥5308.40

avg listing price — sweet spot $15–$100

Price range

Bad¥171.96–¥20039.06

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

According to Flapen's Amazon Japan niche tracking, マスカー 550 is a ¥8.1M/yr Amazon Japan market (31K searches/yr). The top 5 brands hold 74% of demand. Verdict: Worth a look — 63/100.

Data updated Jul 30, 2026 · scored weekly · How we score niches

マスカー 550 market data

Units sold / yr
3K–4K
avg 0–100/product
Revenue / yr
¥15.9M–¥21.2M
units × avg price
Conversion rate
4.9%
Avg BSR
#111
Page quality
0%
Prime
44%
Sponsored
29%
Out of stock
39.1%
Avg brand age
57 months
Avg seller age
190 days

Competition & brand share

The top 5 products take 44% of clicks — established leaders, but buyers still shop beyond them.

Brands

16 rising

Sellers

66

Top-5 brand share

74%

Top 20: 100%

Top-5 click share

44%

Top 20: 84%

Open market

19%

  • ノーブランド品26%
  • アイリスオーヤマ(IRIS OHYAMA)17%
  • トラスコ中山(TRUSCO)16%
  • ハンディ・クラウン(Handy Crown)9%
  • ZAZY7%
  • Intelgracia7%

Demand

Weekly Amazon search volume, last 13 weeks — -2.8% search growth over the last 90 days.
2K2KMay '26May '26May '26Jun '26Jun '26Jul '26Jul '26

Top マスカー 550 search terms

  • マスカー 55017K/yr
  • マスカーテープ 5507K/yr
  • コロナマスカー 5507K/yr
All search terms

Top マスカー 550 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%¥322K8%¥644K12%¥966K16%¥1.3M1101001K10K Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)2 products missing review or click data not plotted

All 24 tracked products in this niche — three views at once, no toggling.

What buyers say about マスカー 550

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

What buyers love

使用の容易さ40%

“使えます”

接着性/粘着性9%

“ラインがちゃんと出ます”

サイズ全体8%

“フィルム部分が550mm有り長すぎず短かすぎず取扱いやすく満足しています”

総合品質7%

“よい商品です”

コストパフォーマンス7%

“安い。 安いから助かります。”

セキュリティ6%

“安心😌”

清掃の容易さ6%

“養生が手早くきれいにできる”

伸縮性/拡張性/弾力性5%

“しっかりカーブもカバーできる”

ペイントの品質3%

“室内塗装やDIYの養生用として使いやすいアイテムです。”

エンボス加工/塗装/昇華2%

“塗装で大活躍”

What buyers complain about

広告と実際の製品の違い23%

“商品説明と違う粗悪品”

コストパフォーマンス17%

“もっと安いの見つけちゃった”

総合品質17%

“商品説明と違う粗悪品”

厚み10%

“ビニールが薄い”

接着性/粘着性10%

“テープに巻き込みます。部材にテープの糊残りします。”

清掃の容易さ7%

“のりが残る為清掃が大変です。”

サイズ全体7%

“大は小を兼ねるですね。”

使用の容易さ3%

“使いずらかった”

Top return reasons

広告と実際の製品の違い65%
エシカルトレード/フェアトレード7%
総合品質5%
使用の容易さ5%
4%
材料の品質3%
互換性-全体2%
機能全体2%
商品の状態2%
強さ2%

Common questions

Is マスカー 550 profitable to sell on Amazon Japan?
The niche generates ¥8.1M/yr across 34 tracked products. 7 of 12 products launched in the last 360 days are still selling. 90-day search growth is -2.8%. Flapen's verdict: Worth a look (63/100).
How competitive is the マスカー 550 niche?
16 brands and 66 sellers compete. The top 5 products take 44% of clicks and top 5 brands hold 74% of demand.
What do buyers complain about in マスカー 550?
Top complaints mined from reviews: 広告と実際の製品の違い, コストパフォーマンス, 総合品質. The return rate is 0.2%.
What does it cost to enter the マスカー 550 niche?
Listings span ¥171.96–¥20039.06; the average listing price is ¥5308.40 (sweet spot $15–$100). The average incumbent carries 518 reviews — the moat a new listing must climb.