Kokushibou Sword
Skip itA small market ($41K/yr) — this niche doesn't clear our bar today.
Avg price
Great$52.03avg listing price — sweet spot $15–$100
Price range
Great$20.03–$121.09cheapest to priciest tracked listing — scored on the share inside $15–$100
Returns
Good2.2%return rate — above 5% kills the launch gate
Review moat
Good1,396.92avg incumbent reviews — the moat a new listing must climb
Brand share
Okay76%top-5 brand share — brands hold most of the demand
Quality gap
Okay4.6★avg incumbent rating — lower means beatable quality
Conversion
Okay2.1%search→purchase rate — share of searches ending in a sale
Competition
Bad74%top-5 click share — a locked-up shelf
Growth
Bad-18.0%90-day search growth — must beat 0% to launch
Market size
Bad$41K$41K/yr · 38K searches
Is kokushibou sword profitable on Amazon?
According to Flapen's Amazon United States niche tracking, kokushibou sword is a $41K/yr Amazon United States market (38K searches/yr). The top 5 brands hold 76% of demand. Verdict: Skip it — 36/100.
Data updated Jul 10, 2026 · scored weekly · How we score niches
kokushibou sword market size & sales
Units sold, revenue, conversion and listing quality across the tracked shelf.- Units sold / yr
- 500–750
- avg 0–100/product
- Revenue / yr
- $26K–$39K
- units × avg price
- Conversion rate
- 2.1%
- Avg BSR
- #587
- Page quality
- 0%
- Prime
- 92%
- Sponsored
- 92%
- Out of stock
- 13.5%
- Avg brand age
- 32 months
- Avg seller age
- 227 days
Competition: brands, sellers & click share
The top 5 products capture 74% of clicks — a locked-up shelf that new listings rarely crack.Brands
11 rising
Sellers
13
Top-5 brand share
76%
Top 20: 100%
Top-5 click share
74%
Top 20: 100%
Open market
16%
- SV34%
- Sword fort13%
- Sword Valley11%
- Zisu10%
- Jorumo9%
- Cold Blade7%
- Open — no brand owns it (5 brands, 16%)
kokushibou sword demand & seasonality
Weekly Amazon search volume, last 33 weeks — -18.0% search growth over the last 90 days.Top kokushibou sword products & what they sell for
Every tracked product — its share of the shelf, its review moat, and what it sells for.Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.
All 13 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
SV Anime Sword Cosplay Kokushibo Sword Katana 41 InchCollectible Gifts
SV$37.154.6★2,937 rev
Sword fort Handmade Katana Anime Cosplay Sword Stainless Steel Demon Sword Real Metal-Kokushibou
Sword fort$45.854.6★2,790 rev
Sword Valley Kokushibou/Tsugikuni Michikatsu Sword - Slayers Katana40.9 LengthAnime Original Texture Carbon Steel Blade Carving SymbolNon-Slip Gripfor Cosplay & Display
Sword Valley$40.794.5★1,793 rev
Jorumo Sword Building Set 39in Kokushibo Sword Building Block with Scabbard and Stand Handmade Cosplay Anime Sword Toy Building Set for Collecting and Gifting 789 pcs
Jorumo$39.214.5★801 rev
Cold Blade Anime Sword - 41 inches Anime Katana Replica with Belt and Stand - Heisimou
Cold Blade$31.934.4★551 rev
Newest
by launch date
Kokushibo Demon Slayer Sword and Scabbard
BUDK$66.800 rev
Runoshi Demon Slayer Collection Katana 40.5-Inch Carbon Steel Samurai Sword Real Katana Swords Cosplay Replica Handmade (Kokushibou)
Runoshi$121.091 rev
Demon Slayer Inspired Japanese Katana Hand Forged Carbon Steel Blade Lacquered Scabbard Anime Collectible - Kokushibo
MN Sword$117.031 rev
Zisu LED Glowing Anime Cosplay Sword Kokushibo Sword - 40 Inch Rechargeable Light Up Sword with Stand & Belt
Zisu$44.7682 rev
RENGENG Light Up Kokushibo Sword 40 Inches Rechargeable Plastic Anime Replica with Belt & Stand Original Texture Anime Sword
RG RENGENG$46.91948 rev
Trending
90-day click momentumKokushibo Demon Slayer Sword and Scabbard
BUDK$66.800.0★
Runoshi Demon Slayer Collection Katana 40.5-Inch Carbon Steel Samurai Sword Real Katana Swords Cosplay Replica Handmade (Kokushibou)
Runoshi$121.095.0★
Zisu Kokushibo Sword - 23.6 Short Katana Replica for Kids - Complete with Belt Stand and True-to-Show Design - Kokushibo Sword Ideal for Display
Zisu$20.034.4★
Zisu Anime Kokushibo Sword About 41 inches Hashira Pillars & Protagonist Sword Anime Original Texture (Purple-Kokushibou)
Zisu$35.124.6★
Kokushibou Sword. Demon Slayer Sword Kokushibou Katana -41 inchfor Role-Playing and Collection.Anime Original Texture
PZOEWUESR$29.804.5★
What reviews say buyers love and hate about kokushibou sword
What buyers praise and complain about, mined from review topics.What buyers love
“Its alright made out of plastic cheap so thats fine”
“Really nice once it put together I would glue it”
“Awesome stuff and cheaper than Lego by $40 bucks”
“W katana fun”
“Good gift”
“It is a decent product”
What buyers complain about
“A little hard to put together”
“The plastic quality is poor”
“the size is significantly smaller than anticipated”
“it broke a little bit trying to put it together other than that it is a somewhat good product”
“those were a little hard to put in”
Top return reasons
Common kokushibou sword questions
- Is kokushibou sword profitable to sell on Amazon United States?
- The niche generates $41K/yr across 13 tracked products. 0 of 3 products launched in the last 360 days are still selling. 90-day search growth is -18.0%. Flapen's verdict: Skip it (36/100).
- How competitive is the kokushibou sword niche?
- 11 brands and 13 sellers compete. The top 5 products take 74% of clicks and top 5 brands hold 76% of demand.
- What do buyers complain about in kokushibou sword?
- Top complaints mined from reviews: Assembly/Installation, Material Quality, Size-Overall. The return rate is 2.2%.
- What does it cost to enter the kokushibou sword niche?
- Listings span $20.03–$121.09; the average listing price is $52.03 (sweet spot $15–$100). The average incumbent carries 1,397 reviews — the moat a new listing must climb.