---
title: "Mahjong Line Finder — $238K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/toys-games/mahjong-line-finder"
last_updated: "2026-08-08T17:21:35.415Z"
locale: en
meta:
description: "Niche score 62/100 · $238K/yr market. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
"og:description": "Niche score 62/100 · $238K/yr market. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
"og:title": "Mahjong Line Finder — $238K/yr Amazon US Niche (2026) - Flapen"
---
# **mahjong line finder**
**Worth a look**
Shows a thin review moat (57 avg reviews), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.
Market size 45Growth 52Conversion 76Competition 67Returns 94Price range 45Avg price 40Brand share 84Review moat 97Quality gap 30
**Review moat**
**Incredible****57.35**
avg incumbent reviews — the moat a new listing must climb
**Returns**
**Great****1.1%**
return rate — above 5% kills the launch gate
**Brand share**
**Great****51%**
top-5 brand share — no brand owns this niche
**Conversion**
**Great****7.1%**
search→purchase rate — share of searches ending in a sale
**Competition**
**Good****45%**
top-5 click share — leaders hold, buyers still browse
**Growth**
**Good****+23.2%**
90-day search growth — must beat 0% to launch
**Market size**
**Okay****$238K**
$238K/yr · 310K searches
**Price range**
**Okay****$4.68–$23.35**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Avg price**
**Okay****$10.75**
avg listing price — sweet spot $15–$100
**Quality gap**
**Okay****4.6★**
avg incumbent rating — lower means beatable quality
**Signals**[** No Dominant Brand**](https://flapen.com/research/niches?market=us&signal=no_dominant_brand "Top brand's click share < 20%") [** Low Review Barrier**](https://flapen.com/research/niches?market=us&signal=low_review_barrier "Top brand's reviews < 500")
According to Flapen's Amazon United States niche tracking, mahjong line finder is a $238K/yr Amazon United States market (310K searches/yr). The top 5 brands hold 51% of demand. Verdict: Worth a look — 62/100.
Data updated Jul 31, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **mahjong line finder market data**
- **Units sold / yr**
- **20K–25K**
- avg 250–500/product
- **Revenue / yr**
- **$215K–$269K**
- units × avg price
- **Conversion rate**
- **7.1%**
- **Avg BSR**
- **#2,167**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **97%**
- **Out of stock**
- **3.2%**
- **Avg brand age**
- **9 months**
- **Avg seller age**
- **186 days**
## **Competition & brand share**
The top 5 products take 45% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**28 **▼falling
**Sellers**
**30**
**Top-5 brand share**
**51%**
Top 20: 92%
**Top-5 click share**
**45%**
Top 20: 85%
**Open market**
**44%**
- linastu17% - Adkoat10% - Amyhill9% - Cwdew9% - czzwak6% - UTCGLAS5%
## **Demand**
Weekly Amazon search volume, last 45 weeks — +23.2% search growth over the last 90 days.
10K6KSpike '25Black Friday '25Spike '26Sep '25Nov '25Dec '25Feb '26Apr '26May '26
[**Open Trend **](https://flapen.com/research/us/toys-games/mahjong-line-finder/trend)
## **Top mahjong line finder search terms**
- **mahjong line reader**101K/yr+23.9%4.7% conv. - **mahjong line finder**56K/yr-19.0%4.6% conv. - **mahjong card line reader**25K/yr+27.3%5.6% conv. - **mahjong prizes**10K/yr+92.5%0.1% conv. - **mahjong line readers**10K/yr+73.0%4.1% conv. - **mahjong highlighter strips**10K/yr+44.2%15.2% conv. - **mahjong line stickers**4K/yr+678.5%11.3% conv. - **mahjong themed gifts**10K/yr+44.2%0.2% conv. - **mah jong gifts**11K/yr+68.5%0.1% conv. - **mahjong hostess gift**7K/yr+36.7%0.0% conv. [**All search terms **](https://flapen.com/research/us/toys-games/mahjong-line-finder/search-terms)
## **Top mahjong line finder 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%5%$12K10%$24K15%$36K20%$48K1101001K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 24 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**320 pcs Mahjong Card Line Finder Highlighter Tape Mahjong Line Highlighter Stripe Transparent Sticky Card Markers Tabs Mahjong Game Rule Reader Reusable & No Adhesive Residue (Solid color + Lines)**linastu**$5.86**4.8★328 rev](https://www.amazon.com/dp/B0FGMSW692) [2**Adkoat 4PCS Mahjong Line Finder: Mah Jongg Card Line Marker Reader Tracker**Adkoat**$8.98**4.7★75 rev](https://www.amazon.com/dp/B0FMYB98PM) [3**Mahjong Line Reader Mahjong Line Finder Acrylic Mah Jong Card Line Guide**Cwdew**$7.30**4.6★110 rev](https://www.amazon.com/dp/B0F9P1TWNL) [4**czzwak 4PC Mahjong Card Line Finder Strips - Bright Acrylic Strategy Tool for Beginners | Travel Parties Game Nights | Rules Helper & Accessories Set | Mahjong Gifts**czzwak**$7.80**4.7★78 rev](https://www.amazon.com/dp/B0FJF8286Z) [5**Vodolo 4 Pcs Mahjong Card Guide and Line Finder for Strategy Tool Suit for Travel Parties Competitions Game Nights Pecfect Mahjong Accessories and Mahjong Gifts for Player and Beginners**Vodolo**$7.33**4.7★28 rev](https://www.amazon.com/dp/B0GKNQ66P2)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Xieyiwei 640PCS Mahjong Line Finder Tape Transparent Writable Card Tabs Reusable No Residue Stickers for Beginners & Players Mahjong Rule Reader Strategy Aid**Xieyiwei**$6.79**22 rev1mo ago](https://www.amazon.com/dp/B0GXHLPNL3) [**Emotional Uplifting 4pcs Mahjong Line Reader with Rules Acrylic 2026 American Mahjong Card Line Finder Friendly Mahjong Accessories Mahjongg Gifts for Women Player Friends and Beginners (White)**Emotional Uplifting**$15.47**13 rev2mo ago](https://www.amazon.com/dp/B0H1Q1DRZY) [**Colorato Tortoise Mahjong Line Reader Applicable for 2026 Mahjong Card**Colorato**$9.79**52 rev2mo ago](https://www.amazon.com/dp/B0H1L25YWG) [**4 Pack Mahjong Line Reader Mahjong Accessories and Gifts for Women**Bobby Creativity**$15.79**39 rev2mo ago](https://www.amazon.com/dp/B0GZW65G6N) [**Nistarce Mahjong Line Reader Set of 4 Mahjong Cards Reading Guide with Elegant Envelope Gift Mahj ong Accessories & Mahjong Gifts for Mah Jong Lovers and Game Night**Nistarce**$7.53**8 rev3mo ago](https://www.amazon.com/dp/B0GK6VZGGN)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Colorato Tortoise Mahjong Line Reader Applicable for 2026 Mahjong Card**Colorato**$9.79**4.4★**▲ 127%**](https://www.amazon.com/dp/B0H1L25YWG) [**Emotional Uplifting 4pcs Mahjong Line Reader with Rules Acrylic 2026 American Mahjong Card Line Finder Friendly Mahjong Accessories Mahjongg Gifts for Women Player Friends and Beginners (White)**Emotional Uplifting**$15.47**4.6★**▲ 127%**](https://www.amazon.com/dp/B0H1Q1DRZY) [**Xieyiwei 640PCS Mahjong Line Finder Tape Transparent Writable Card Tabs Reusable No Residue Stickers for Beginners & Players Mahjong Rule Reader Strategy Aid**Xieyiwei**$6.79**4.6★**▲ 127%**](https://www.amazon.com/dp/B0GXHLPNL3) [**4 Pack Mahjong Line Reader Mahjong Accessories and Gifts for Women**Bobby Creativity**$15.79**4.6★**▲ 126%**](https://www.amazon.com/dp/B0GZW65G6N) [**Nistarce Mahjong Line Reader Set of 4 Mahjong Cards Reading Guide with Elegant Envelope Gift Mahj ong Accessories & Mahjong Gifts for Mah Jong Lovers and Game Night**Nistarce**$7.53**4.2★**▲ 126%**](https://www.amazon.com/dp/B0GK6VZGGN)
**~~View all trending →~~**
## **What buyers say about mahjong line finder**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Ease Of Use**17%
*“Easy to Use”*
**Quality-Overall**10%
*“Well-made, affordable and super functional”*
**Color**9%
*“Colors are very pretty”*
**Value For Money**6%
*“There are affordable”*
**Adhesion/Stickiness**5%
*“The stickers adhere well”*
**Advertised Vs Actual Product**5%
*“As Advertised”*
**Efficiency**4%
*“Work well for mahjong”*
**Suitability Beginner**4%
*“Beautiful beginners set”*
**Fun/Entertainment Experience**4%
*“These are so fun and useful”*
**Size-Overall**4%
*“The large pack size is very helpful since I use them frequently”*
### **What buyers complain about **
**Ease Of Use**11%
*“Not easy to use”*
**Adhesion/Stickiness**10%
*“theres a small section of each sticky that isnt sticky”*
**Thickness**9%
*“They are made of wood so a bit thick”*
**Quality-Overall**7%
*“very cheaply made”*
**Functionality-Overall**5%
*“Didnt work for me”*
**Strength**5%
*“they break super easily”*
**Size-Overall**5%
*“is seems a little wide”*
**Durability**4%
*“break easily”*
**Smell**4%
*“Toxic smell goes away”*
**Material Quality**3%
*“Did not like material liked the colors and verbage”*
### **Top return reasons **
**Size-Overall**32%
**Advertised Vs Actual Product**10%
**Color**7%
**Material Quality**6%
**Functionality-Overall**6%
**Defective Material/Parts**5%
**Quality-Overall**5%
**Thickness**5%
**Value For Money**5%
**Ease Of Use**4%
## **Common questions**
- **Is mahjong line finder profitable to sell on Amazon United States?**
- The niche generates $238K/yr across 34 tracked products. 8 of 24 products launched in the last 360 days are still selling. 90-day search growth is +23.2%. Flapen's verdict: Worth a look (62/100).
- **How competitive is the mahjong line finder niche?**
- 28 brands and 30 sellers compete. The top 5 products take 45% of clicks and top 5 brands hold 51% of demand.
- **What do buyers complain about in mahjong line finder?**
- Top complaints mined from reviews: Ease Of Use, Adhesion/Stickiness, Thickness. The return rate is 1.1%.
- **What does it cost to enter the mahjong line finder niche?**
- Listings span $4.68–$23.35; the average listing price is $10.75 (sweet spot $15–$100). The average incumbent carries 57 reviews — the moat a new listing must climb.
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