mahjong line finder
Worth a lookShows a thin review moat (57 avg reviews), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.
Review moat
Incredible57.35avg incumbent reviews — the moat a new listing must climb
Returns
Great1.1%return rate — above 5% kills the launch gate
Brand share
Great51%top-5 brand share — no brand owns this niche
Conversion
Great7.1%search→purchase rate — share of searches ending in a sale
Competition
Good45%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–$23.35cheapest to priciest tracked listing — scored on the share inside $15–$100
Avg price
Okay$10.75avg listing price — sweet spot $15–$100
Quality gap
Okay4.6★avg incumbent rating — lower means beatable quality
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
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.Top mahjong line finder search terms
- mahjong line reader101K/yr
- mahjong line finder56K/yr
- mahjong card line reader25K/yr
- mahjong prizes10K/yr
- mahjong line readers10K/yr
- mahjong highlighter strips10K/yr
- mahjong line stickers4K/yr
- mahjong themed gifts10K/yr
- mah jong gifts11K/yr
- mahjong hostess gift7K/yr
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.
All 24 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
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$5.864.8★328 rev
Adkoat 4PCS Mahjong Line Finder: Mah Jongg Card Line Marker Reader Tracker
Adkoat$8.984.7★75 rev
Mahjong Line Reader Mahjong Line Finder Acrylic Mah Jong Card Line Guide
Cwdew$7.304.6★110 rev
czzwak 4PC Mahjong Card Line Finder Strips - Bright Acrylic Strategy Tool for Beginners | Travel Parties Game Nights | Rules Helper & Accessories Set | Mahjong Gifts
czzwak$7.804.7★78 rev
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$7.334.7★28 rev
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$6.7922 rev
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$15.4713 rev
Colorato Tortoise Mahjong Line Reader Applicable for 2026 Mahjong Card
Colorato$9.7952 rev
4 Pack Mahjong Line Reader Mahjong Accessories and Gifts for Women
Bobby Creativity$15.7939 rev
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$7.538 rev
Trending
90-day click momentumColorato Tortoise Mahjong Line Reader Applicable for 2026 Mahjong Card
Colorato$9.794.4★
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$15.474.6★
Xieyiwei 640PCS Mahjong Line Finder Tape Transparent Writable Card Tabs Reusable No Residue Stickers for Beginners & Players Mahjong Rule Reader Strategy Aid
Xieyiwei$6.794.6★
4 Pack Mahjong Line Reader Mahjong Accessories and Gifts for Women
Bobby Creativity$15.794.6★
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$7.534.2★
What buyers say about mahjong line finder
What buyers praise and complain about, mined from review topics.What buyers love
“Easy to Use”
“Well-made, affordable and super functional”
“Colors are very pretty”
“There are affordable”
“The stickers adhere well”
“As Advertised”
“Work well for mahjong”
“Beautiful beginners set”
“These are so fun and useful”
“The large pack size is very helpful since I use them frequently”
What buyers complain about
“Not easy to use”
“theres a small section of each sticky that isnt sticky”
“They are made of wood so a bit thick”
“very cheaply made”
“Didnt work for me”
“they break super easily”
“is seems a little wide”
“break easily”
“Toxic smell goes away”
“Did not like material liked the colors and verbage”
Top return reasons
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.