Is fulngsele profitable to sell on Amazon Japan?

The niche generates ¥527K/yr across 6 tracked products. 4 of 4 products launched in the last 360 days are still selling. 90-day search growth is -27.4%. Flapen's verdict: Skip it (35/100).

How competitive is the fulngsele niche?

4 brands and 6 sellers compete. The top 5 products take 96% of clicks and top 5 brands hold 100% of demand.

What do buyers complain about in fulngsele?

Top complaints mined from reviews: サイズ全体, 清掃の容易さ, ジャミング/詰まり. The return rate is 0.2%.

When does demand for fulngsele peak?

Demand peaks in Jan–Feb–Nov–Dec; the busiest month runs 15.1× the quietest.

What does it cost to enter the fulngsele niche?

Listings span ¥346.63–¥1866.27; the average listing price is ¥1230.14 (sweet spot $15–$100). The average incumbent carries 380 reviews — the moat a new listing must climb.

fulngsele

Skip it

Brand-locked demand (top 5 brands take 100% of clicks) — this niche doesn't clear our bar today.

Returns

Incredible0.2%

return rate — above 5% kills the launch gate

Review moat

Great380.33

avg incumbent reviews — the moat a new listing must climb

Quality gap

Good4.3★

avg incumbent rating — lower means beatable quality

Market size

Good¥527K

¥527K/yr · 24K searches

Conversion

Bad1.8%

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

Growth

Bad-27.4%

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

Competition

Bad96%

top-5 click share — a locked-up shelf

Brand share

Bad100%

top-5 brand share — brand-locked demand

Avg price

Bad¥1230.14

avg listing price — sweet spot $15–$100

Price range

Bad¥346.63–¥1866.27

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

Signals High Price

According to Flapen's Amazon Japan niche tracking, fulngsele is a ¥527K/yr Amazon Japan market (24K searches/yr). The top 5 brands hold 100% of demand. Demand peaks in Jan–Feb–Nov–Dec. Verdict: Skip it — 35/100.

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

fulngsele market data

Units sold / yr: 1K–2K; avg 100–250/product
Revenue / yr: ¥1.5M–¥1.8M; units × avg price
Conversion rate: 1.8%
Avg BSR: #7
Page quality: 0%
Prime: 33%
Sponsored: 100%
Out of stock: 0.0%
Avg brand age: 27 months
Avg seller age: 177 days

Competition & brand share

The top 5 products capture 96% of clicks — a locked-up shelf that new listings rarely crack.

Brands

4 falling

Sellers

Top-5 brand share

100%

Top 20: 100%

Top-5 click share

96%

Top 20: 100%

Open market

FULNG80%
MAMAGO11%
LANMU5%
おそうじクラゲ4%

Demand & seasonality

Weekly Amazon search volume, last 52 weeks — -27.4% search growth over the last 90 days.

Peak months: Jan, Feb, Nov, Dec · busiest ÷ quietest = 15.1×

Open Trend

Top fulngsele 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.

Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 6 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

FULNG 洗面台用排水口排水溝ゴミ受け髪の毛極排水排水口外径約64mm[実用新案出願済み] (silver 6.4cm)

FULNG¥1757.074.3★887 rev

ヘアーキャッチャー浴室お風呂洗面台洗面所ネット100枚入り排水溝排水口ごみ受けステンレス製ヘアキャッチャーカバープレート式髪の毛排水口ネット掃除簡単ユニットバス対応 (直径6.4cm)

MAMAGO¥1117.134.3★113 rev

FULNG洗面台用排水溝 30 枚入 (6.4cm洗面台用専用ネット)

FULNG¥346.634.6★60 rev

FULNG 洗面台用ヘアキャッチャー洗面台排水口排水溝ゴミ受け髪の毛極排水排水口外径約64mm[実用新案出願済み] (6.4cm)

FULNG¥1866.274.3★85 rev

LANMU 洗面台ヘアキャッチャー洗面台排水口ゴミ受けステンレス製口径3.5-4.5 cm 洗面所排水口ネットホルダー 100枚水切りネット付き髪の毛キャッチャー排水溝掃除特許出願

LANMU¥1149.554.1★439 rev

Newest

by launch date

MAMAGO¥1117.13113 rev

5mo ago

FULNG 洗面台用ヘアキャッチャー洗面台排水口排水溝ゴミ受け髪の毛極排水排水口外径約64mm[実用新案出願済み] (6.4cm)

FULNG¥1866.2785 rev

8mo ago

FULNG洗面台用排水溝 30 枚入 (6.4cm洗面台用専用ネット)

FULNG¥346.6360 rev

11mo ago

FULNG 洗面台用排水口排水溝ゴミ受け髪の毛極排水排水口外径約64mm[実用新案出願済み] (silver 6.4cm)

FULNG¥1757.07887 rev

11mo ago

おそうじクラゲ® 洗面台・洗面所用シリコン製ヘアキャッチャー排水口排水溝ゴミ受けネット交換式特許取得済モカグレー止水カバー無し

おそうじクラゲ¥1144.18698 rev

1y ago

What buyers say about fulngsele

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

What buyers love

清掃の容易さ31%

“こちらはステンレス製ですので、サビや傷にも強く、汚れがついても容易に落とす事ができます。”

使用の容易さ22%

“シリコンのお手入れも簡単にそのまま手で水洗い。”

サイズ全体7%

“ミラタップでシンデレラフィット”

総合品質5%

“総合的には使い勝手も悪くなく、ネットの取り外しもそこまで手間でもなく、シンプルで洗いやすいのでお勧めです。”

材料の品質4%

“シリコンが良い感じにフィットしたおかげで今のところ問題なく使えていて感動しています。”

組み立て/インストール3%

“取り付けも簡単でしっかりゴミも取れて購入して良かったです”

快適さ-全体2%

“使い心地が良さそうです”

コストパフォーマンス2%

“コスパ最強”

生锈/腐食する2%

“錆びない”

色2%

“色味がかわいい”

What buyers complain about

サイズ全体21%

“小さかった”

清掃の容易さ11%

“掃除が嫌だった”

ジャミング/詰まり10%

“すぐ詰まる”

使用の容易さ6%

“使いにくく”

コストパフォーマンス5%

“お値段しますが”

耐久性3%

“ゴムからネットが抜けた”

材料の品質2%

“この手の製品ではプラスチック製の物も多いのですが、キャッチャー部分の交換が出来ても本体がプラスチックのため長期使用の場合はどうしても取れない汚れや傷がつく問題があります。”

強さ2%

“ゆるいです”

生锈/腐食する2%

“金属製を使用していて、錆が発生したのでシリコンに変えました。”

漏れ防止2%

“うちの洗面台だと、蛇口の水が当たるとずれる...ちょくに当たらなくてもずれる。だから、目を離すと、髪の毛とか流れていってしまってそう...”

Top return reasons

サイズ全体78%

不良材料/部品5%

互換性-全体3%

商品の状態2%

組み立て/インストール2%

広告と実際の製品の違い1%

傷に強い1%

機能全体1%

色1%

使用の容易さ1%

Common questions

Is fulngsele profitable to sell on Amazon Japan?: The niche generates ¥527K/yr across 6 tracked products. 4 of 4 products launched in the last 360 days are still selling. 90-day search growth is -27.4%. Flapen's verdict: Skip it (35/100).
How competitive is the fulngsele niche?: 4 brands and 6 sellers compete. The top 5 products take 96% of clicks and top 5 brands hold 100% of demand.
What do buyers complain about in fulngsele?: Top complaints mined from reviews: サイズ全体, 清掃の容易さ, ジャミング/詰まり. The return rate is 0.2%.
When does demand for fulngsele peak?: Demand peaks in Jan–Feb–Nov–Dec; the busiest month runs 15.1× the quietest.
What does it cost to enter the fulngsele niche?: Listings span ¥346.63–¥1866.27; the average listing price is ¥1230.14 (sweet spot $15–$100). The average incumbent carries 380 reviews — the moat a new listing must climb.