---
title: "Reviews — 紙やすり 240 - Flapen"
canonical_url: "https://flapen.com/research/jp/diy/240/reviews"
last_updated: "2026-08-08T08:45:05.510Z"
locale: en
meta:
  description: "Niche score 52/100 · ¥739K/yr market. Prices mostly outside the sweet spot ($134.42–$676.88) keeps it on the watch list. Data updated Jul 2026."
  "og:description": "Niche score 52/100 · ¥739K/yr market. Prices mostly outside the sweet spot ($134.42–$676.88) keeps it on the watch list. Data updated Jul 2026."
  "og:title": "Reviews — 紙やすり 240 - Flapen"
---

# **紙やすり 240**

**Worth a look**

Shows low returns (0.3%), but prices mostly outside the sweet spot ($134.42–$676.88) keeps it on the watch list.

Market size 70Growth 34Conversion 95Competition 12Returns 99Price range 0Avg price 13Brand share 6Review moat 97Quality gap 96

**Returns**

**Incredible****0.3%**

return rate — above 5% kills the launch gate

**Review moat**

**Incredible****61.6**

avg incumbent reviews — the moat a new listing must climb

**Quality gap**

**Incredible****3.9★**

avg incumbent rating — lower means beatable quality

**Conversion**

**Incredible****12.8%**

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

**Market size**

**Good****¥739K**

¥739K/yr · 14K searches

**Growth**

**Okay****+7.1%**

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

**Avg price**

**Bad****¥413.14**

avg listing price — sweet spot $15–$100

**Competition**

**Bad****86%**

top-5 click share — a locked-up shelf

**Brand share**

**Bad****98%**

top-5 brand share — brand-locked demand

**Price range**

**Bad****¥134.42–¥676.88**

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") [** Quality Gap**](https://flapen.com/research/niches?market=jp&signal=quality_gap "Avg rating < 4.0") [** High Price**](https://flapen.com/research/niches?market=jp&signal=high_price "Avg price > $50")

## Reviews