---
title: "Maruumo Japan (マルーモジャパン） — ¥996K/yr Amazon JP Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/jp/diy/maruumo-japan"
last_updated: "2026-08-08T09:34:32.925Z"
locale: en
meta:
description: "Niche score 46/100 · ¥996K/yr market · 20K searches/yr · ¥4867.34 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 46/100 · ¥996K/yr market · 20K searches/yr · ¥4867.34 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Maruumo Japan (マルーモジャパン） — ¥996K/yr Amazon JP Niche (2026) - Flapen"
---
# **maruumo japan (マルーモジャパン）**
**Skip it**
Pricing outside the sweet spot ($4867.34 avg) — this niche doesn't clear our bar today.
Market size 78Growth 10Conversion 13Competition 75Returns 98Price range 0Avg price 0Brand share 2Review moat 100Quality gap 55
**Review moat**
**Incredible****7.68**
avg incumbent reviews — the moat a new listing must climb
**Returns**
**Incredible****0.4%**
return rate — above 5% kills the launch gate
**Market size**
**Great****¥996K**
¥996K/yr · 20K searches
**Competition**
**Great****40%**
top-5 click share — an open shelf
**Quality gap**
**Good****4.4★**
avg incumbent rating — lower means beatable quality
**Conversion**
**Bad****1.0%**
search→purchase rate — share of searches ending in a sale
**Growth**
**Bad****-30.3%**
90-day search growth — must beat 0% to launch
**Brand share**
**Bad****99%**
top-5 brand share — brand-locked demand
**Avg price**
**Bad****¥4867.34**
avg listing price — sweet spot $15–$100
**Price range**
**Bad****¥918.43–¥13363.51**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Signals**[** Low Review Barrier**](https://flapen.com/research/niches?market=jp&signal=low_review_barrier "Top brand's reviews < 500") [** High Price**](https://flapen.com/research/niches?market=jp&signal=high_price "Avg price > $50") [** Out of Stock**](https://flapen.com/research/niches?market=jp&signal=out_of_stock "OOS rate > 10%")
According to Flapen's Amazon Japan niche tracking, maruumo japan (マルーモジャパン） is a ¥996K/yr Amazon Japan market (20K searches/yr). The top 5 brands hold 99% of demand. Demand peaks in Mar–Oct. Verdict: Skip it — 46/100.
Data updated Jul 30, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **maruumo japan (マルーモジャパン） market data**
- **Units sold / yr**
- **250–500**
- avg 0–100/product
- **Revenue / yr**
- **¥1.2M–¥2.4M**
- units × avg price
- **Conversion rate**
- **1.0%**
- **Avg BSR**
- **#390**
- **Page quality**
- **0%**
- **Prime**
- **88%**
- **Sponsored**
- **20%**
- **Out of stock**
- **22.0%**
- **Avg brand age**
- **30 months**
- **Avg seller age**
- **188 days**
## **Competition & brand share**
Clicks spread well past the top 5 (40% combined) — an open shelf where new products get seen.
**Brands**
**6 **▲rising
**Sellers**
**9**
**Top-5 brand share**
**99%**
Top 20: 100%
**Top-5 click share**
**40%**
Top 20: 96%
**Open market**
**0%**
- maruumo japan (マルーモジャパン）87% - サンムラー6% - Fulimr4% - PROCKET1% - donghaifengyong1% - ノーブランド品1%
## **Demand & seasonality**
Weekly Amazon search volume, last 56 weeks — -30.3% search growth over the last 90 days.
800600Spike '25Holiday '25Spike '26 seasonJulAugSepOctNovDecJanFebMarAprMayJunJul
Peak months: Mar, Oct · busiest ÷ quietest = 2.9×
[**Open Trend **](https://flapen.com/research/jp/diy/maruumo-japan/trend)
## **Top maruumo japan (マルーモジャパン） 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%3%¥30K6%¥60K9%¥90K12%¥119K1101001K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)5 products missing review or click data not plotted
All 24 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**maruumo-TUBUU L (マルーモツブウーエル）**maruumo japan (マルーモジャパン）**¥3395.96**5.0★2 rev](https://www.amazon.co.jp/dp/B0GQMPLMDQ) [2**maruumo-INYOUSAN 125 (マルーモインヨウサン125）ペーパーホルダー**maruumo japan (マルーモジャパン）**¥3817.37**0.0★0 rev](https://www.amazon.co.jp/dp/B0H3JJ7375) [3**maruumo-ZUNOPPEE S-type 02 (マルーモズノッピーSタイプ０２）**maruumo japan (マルーモジャパン）**¥3000.47**5.0★4 rev](https://www.amazon.co.jp/dp/B0FC335NV1) [4**maruumo-W-RULER 45 (マルーモダブルルーラー45）**maruumo japan (マルーモジャパン）**¥6996.11**3.9★3 rev](https://www.amazon.co.jp/dp/B0DC5CCG1K) [5**90471 きつけ箆（へら）2本組**サンムラー**¥2131.64**3.8★13 rev](https://www.amazon.co.jp/dp/B002UNC0ZS)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**maruumo-INYOUSAN 125 (マルーモインヨウサン125）ペーパーホルダー**maruumo japan (マルーモジャパン）**¥3817.37**0 rev1mo ago](https://www.amazon.co.jp/dp/B0H3JJ7375) [**maruumo-FLAPPEE 1.0 (マルーモ フラッピー 1.0）**maruumo japan (マルーモジャパン）**¥4361.86**0 rev2mo ago](https://www.amazon.co.jp/dp/B0H2M6LXNT) [**maruumo-TUBUU L (マルーモツブウーエル）**maruumo japan (マルーモジャパン）**¥3395.96**2 rev5mo ago](https://www.amazon.co.jp/dp/B0GQMPLMDQ) [**maruumo-TUBUU S (マルーモツブウーエス）**maruumo japan (マルーモジャパン）**¥2998.61**1 rev5mo ago](https://www.amazon.co.jp/dp/B0GQN2SFHB) [**maruumo-TUBUU BRUSH (マルーモツブウーブラシ）**maruumo japan (マルーモジャパン）**¥918.43**2 rev5mo ago](https://www.amazon.co.jp/dp/B0GQMQX7XW)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**maruumo-INYOUSAN 125 (マルーモインヨウサン125）ペーパーホルダー**maruumo japan (マルーモジャパン）**¥3817.37**0.0★**▲ 353%**](https://www.amazon.co.jp/dp/B0H3JJ7375) [**maruumo-FLAPPEE 1.0 (マルーモ フラッピー 1.0）**maruumo japan (マルーモジャパン）**¥4361.86**0.0★**▲ 353%**](https://www.amazon.co.jp/dp/B0H2M6LXNT) [![サスペンダー付きツールベルト ヒップ用ツールポーチ オックスフォード生地 多ポケット 調整可能ウエストバンド 腰道具バッグ 大工電気工事配管造園 DIY 作業者向け [並行輸入品]](https://m.media-amazon.com/images/I/41ov1GVoDwL.jpg)**サスペンダー付きツールベルト ヒップ用ツールポーチ オックスフォード生地 多ポケット 調整可能ウエストバンド 腰道具バッグ 大工電気工事配管造園 DIY 作業者向け \[並行輸入品\]**Fulimr**¥4641.02**0.0★**▲ 157%**](https://www.amazon.co.jp/dp/B0GGXTFWKH) [**ハンマー手作り装飾ステンレススチール拳ハードウェアツールハンマー車多機能 (35.5*7*7cm シルバー)**donghaifengyong**¥4527.07**4.3★**▲ 156%**](https://www.amazon.co.jp/dp/B0FS642D4Q) [**maruumo-MORE BERA 0.8 (マルーモモアベラ0.8）**maruumo japan (マルーモジャパン）**¥3999.40**0.0★**▲ 99%**](https://www.amazon.co.jp/dp/B0F4P82P46)
**~~View all trending →~~**
## **What buyers say about maruumo japan (マルーモジャパン）**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**使用の容易さ**25%
*“こちら、紙やすりが付属されていて自分にあうようにできるので、使い勝手は良いですね.”*
**厚み**17%
*“それなりに厚みと弾力性も有るので多少不陸の悪い壁でもストレス無くエア抜き出来てると思います🙄”*
**デザイン全体**17%
*“造りは問題無し”*
**機能全体**17%
*“ジョイントの納まりが凄く良いです”*
**ブラシの品質**8%
*“刷毛とスムーサーが一体になってるので、持ち替える手間も省けて、作業が大幅に短縮出来そうです。”*
**軽い**8%
*“そして、何より激軽です。”*
### **What buyers complain about **
**使用の容易さ**50%
*“実際に使おうとすると打つ面が広いので逆に使いにくいかも”*
### **Top return reasons **
**材料の品質**67%
**騒音レベル**33%
## **Common questions**
- **Is maruumo japan (マルーモジャパン） profitable to sell on Amazon Japan?**
- The niche generates ¥996K/yr across 25 tracked products. 3 of 10 products launched in the last 360 days are still selling. 90-day search growth is -30.3%. Flapen's verdict: Skip it (46/100).
- **How competitive is the maruumo japan (マルーモジャパン） niche?**
- 6 brands and 9 sellers compete. The top 5 products take 40% of clicks and top 5 brands hold 99% of demand.
- **What do buyers complain about in maruumo japan (マルーモジャパン）?**
- Top complaints mined from reviews: 使用の容易さ. The return rate is 0.4%.
- **When does demand for maruumo japan (マルーモジャパン） peak?**
- Demand peaks in Mar–Oct; the busiest month runs 2.9× the quietest.
- **What does it cost to enter the maruumo japan (マルーモジャパン） niche?**
- Listings span ¥918.43–¥13363.51; the average listing price is ¥4867.34 (sweet spot $15–$100). The average incumbent carries 8 reviews — the moat a new listing must climb.
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