gongii
Skip itPrices mostly outside the sweet spot ($5.21–$14.06) — this niche doesn't clear our bar today.
Review moat
Great327.89avg incumbent reviews — the moat a new listing must climb
Quality gap
Great4.3★avg incumbent rating — lower means beatable quality
Returns
Good2.4%return rate — above 5% kills the launch gate
Conversion
Good4.0%search→purchase rate — share of searches ending in a sale
Brand share
Okay88%top-5 brand share — brands hold most of the demand
Avg price
Bad$8.68avg listing price — sweet spot $15–$100
Competition
Bad80%top-5 click share — a locked-up shelf
Growth
Bad-28.5%90-day search growth — must beat 0% to launch
Market size
Bad$3K$3K/yr · 9K searches
Price range
Bad$5.21–$14.06cheapest to priciest tracked listing — scored on the share inside $15–$100
According to Flapen's Amazon United States niche tracking, gongii is a $3K/yr Amazon United States market (9K searches/yr). The top 5 brands hold 88% of demand. Demand peaks in Mar–Jul–Nov. Verdict: Skip it — 32/100.
Data updated Jul 8, 2026 · scored weekly · How we score niches
gongii market data
- Units sold / yr
- 250–500
- avg 0–100/product
- Revenue / yr
- $2K–$4K
- units × avg price
- Conversion rate
- 4.0%
- Avg BSR
- #217
- Page quality
- 0%
- Prime
- 100%
- Sponsored
- 78%
- Out of stock
- 22.7%
- Avg brand age
- 43 months
- Avg seller age
- 241 days
Competition & brand share
The top 5 products capture 80% of clicks — a locked-up shelf that new listings rarely crack.Brands
7 falling
Sellers
36
Top-5 brand share
88%
Top 20: 100%
Top-5 click share
80%
Top 20: 100%
Open market
5%
- Redpai27%
- Korea27%
- LAON9016%
- PETBSNVB10%
- Markhomia8%
- ARA7%
- Open — no brand owns it (1 brand, 5%)
Demand & seasonality
Weekly Amazon search volume, last 71 weeks — -28.5% search growth over the last 90 days.Peak months: Mar, Jul, Nov · busiest ÷ quietest = 6.3×
Top gongii search terms
- gongii7K/yr
- goggi2K/yr
- gon gi784/yr
Top gongii 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 9 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Redpai Gonggi Game Set Pack of 5 with Steel Beads - Authentic Korean Jackstones 3D-Printed Durable Plastic Shells & Weighted Design forAdults Traditional Toss & Catch Game Gift
Redpai$8.174.5★47 rev
![[Random] Korean Traditional Play Game Gonggi Jack Stone Pebbles Set (2 Sets)](https://m.media-amazon.com/images/I/412xhADqMeL.jpg)
[Random] Korean Traditional Play Game Gonggi Jack Stone Pebbles Set (2 Sets)
Korea$9.413.7★602 rev
LAON90 LAON Korean Original Gonggi Not 3D Printed Portable 5 Stones Set with Pocket-Size Case (Colors: Red Green Blue) (Green)
LAON90$5.214.4★224 rev
Markhomia Gonggi Korean Traditional Folk Game Play Set - Jebi chagi Gong-gi Biseokchigi Paeng-y DDAKJI Family Travel Games (1 Set)
Markhomia$13.004.2★362 rev
Gonggi Konggi Gong Gi Korean Jacks Jack Stone Game 1 Case includes 13 Pieces
ARA$5.884.4★610 rev
Newest
by launch dateRedpai Gonggi Game Set Pack of 5 with Steel Beads - Authentic Korean Jackstones 3D-Printed Durable Plastic Shells & Weighted Design forAdults Traditional Toss & Catch Game Gift
Redpai$8.1747 rev
PETBSNVB Real Weighted Gonggi with Steel Beads in a Box Jackstones Gonggi Stones Traditional Korean Game for Party Great Gift for Children
PETBSNVB$6.96104 rev
ReeRaa Gonggi Korean Game Tossing Set (Korean Traditional Play Game) Jebi chagi Stone catching Biseokchigi Paeng-y DDAKJI & Family & Party Easter Basket Stuffers Christmas (1 Set)
ReeRaa$14.06500 rev
PETBSNVB 2 Packs 5pcs Real Weighted Gonggi with Steel Beads -The Lid and Body are Seamlessly Welded - Jackstones Gonggi Stones Traditional Korean Game for Party Great Gift for Children
PETBSNVB$10.04278 rev
Markhomia Gonggi Korean Traditional Folk Game Play Set - Jebi chagi Gong-gi Biseokchigi Paeng-y DDAKJI Family Travel Games (1 Set)
Markhomia$13.00362 rev
Trending
90-day click momentumRedpai Gonggi Game Set Pack of 5 with Steel Beads - Authentic Korean Jackstones 3D-Printed Durable Plastic Shells & Weighted Design forAdults Traditional Toss & Catch Game Gift
Redpai$8.174.5★
LAON90 LAON Korean Original Gonggi Not 3D Printed Portable 5 Stones Set with Pocket-Size Case (Colors: Red Green Blue) (Blue)
LAON90$5.444.4★
[Random] Korean Traditional Play Game Gonggi Jack Stone Pebbles Set (2 Sets)
Korea$9.413.7★
LAON90 LAON Korean Original Gonggi Not 3D Printed Portable 5 Stones Set with Pocket-Size Case (Colors: Red Green Blue) (Green)
LAON90$5.214.4★
ReeRaa Gonggi Korean Game Tossing Set (Korean Traditional Play Game) Jebi chagi Stone catching Biseokchigi Paeng-y DDAKJI & Family & Party Easter Basket Stuffers Christmas (1 Set)
ReeRaa$14.064.2★
What buyers say about gongii
What buyers praise and complain about, mined from review topics.What buyers love
“Lots of fun”
“These gonggi stones are excellent quality”
“good gift”
“this is worth the money”
“Was exactly what we ordered”
“Good size”
“Good quality and durable”
“Colors are bright and vivid and the shapes are printed perfectly”
“in good shape thank you for your care on making sure our order went smoothly”
“Its great teaching eye hand coordination and boosts confidence”
What buyers complain about
“Poor Quality and Items not Operational”
“Broke easy”
“Small”
“feels like it could have costed more”
“Not exactly the same colors as Squid games”
“the little pieces are hard to clean up”
“Material”
“2 pieces already broke”
“They are too thin”
“it's supposed to be hard”
Top return reasons
Common questions
- Is gongii profitable to sell on Amazon United States?
- The niche generates $3K/yr across 9 tracked products. 90-day search growth is -28.5%. Flapen's verdict: Skip it (32/100).
- How competitive is the gongii niche?
- 7 brands and 36 sellers compete. The top 5 products take 80% of clicks and top 5 brands hold 88% of demand.
- What do buyers complain about in gongii?
- Top complaints mined from reviews: Quality-Overall, Durability, Size-Overall. The return rate is 2.4%.
- When does demand for gongii peak?
- Demand peaks in Mar–Jul–Nov; the busiest month runs 6.3× the quietest.
- What does it cost to enter the gongii niche?
- Listings span $5.21–$14.06; the average listing price is $8.68 (sweet spot $15–$100). The average incumbent carries 328 reviews — the moat a new listing must climb.