butterfly knife
Skip itSoft demand (-34.1% this quarter) — this niche doesn't clear our bar today.
Returns
Incredible0.6%return rate — above 5% kills the launch gate
Review moat
Great143.33avg incumbent reviews — the moat a new listing must climb
Quality gap
Great4.0★avg incumbent rating — lower means beatable quality
Brand share
Good67%top-5 brand share — brands hold most of the demand
Price range
Good£3.52–£27.18cheapest to priciest tracked listing — scored on the share inside $15–$100
Competition
Okay57%top-5 click share — leaders hold, buyers still browse
Avg price
Okay£10.48avg listing price — sweet spot $15–$100
Market size
Bad£62K£62K/yr · 499K searches
Conversion
Bad1.2%search→purchase rate — share of searches ending in a sale
Growth
Bad-34.1%90-day search growth — must beat 0% to launch
According to Flapen's Amazon United Kingdom niche tracking, butterfly knife is a £62K/yr Amazon United Kingdom market (499K searches/yr). The top 5 brands hold 67% of demand. Demand peaks in Feb–Dec. Verdict: Skip it — 46/100.
Data updated Jul 27, 2026 · scored weekly · How we score niches
butterfly knife market data
- Units sold / yr
- 4K–5K
- avg 100–250/product
- Revenue / yr
- £42K–£52K
- units × avg price
- Conversion rate
- 1.2%
- Avg BSR
- #1,106
- Page quality
- 0%
- Prime
- 90%
- Sponsored
- 24%
- Out of stock
- 13.5%
- Avg brand age
- 49 months
- Avg seller age
- 199 days
Competition & brand share
The top 5 products take 57% of clicks — established leaders, but buyers still shop beyond them.Brands
18 falling
Sellers
25
Top-5 brand share
67%
Top 20: 100%
Top-5 click share
57%
Top 20: 99%
Open market
26%
- XCMC21%
- City Million16%
- Ideal Swan12%
- AOSILEY9%
- Eophmi8%
- Baosong7%
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — -34.1% search growth over the last 90 days.Peak months: Feb, Dec · busiest ÷ quietest = 1.7×
Top butterfly knife search terms
- butterfly knife264K/yr
- balisong73K/yr
- butterfly knife trainer59K/yr
- balisong trainer44K/yr
- practice butterfly knife17K/yr
- butter fly knife9K/yr
- balisongs6K/yr
- training butterfly knife10K/yr
- fake butterfly knife6K/yr
- balisong knife6K/yr
Top butterfly knife 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 21 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
XCMC Balisong Butterfly Trainer Practice Butterfly Trainer Bottle Opener - NOT Real - NO Sharp - Unsharpened Blade
XCMC£13.904.5★66 rev
Ideal Swan 2 Pcs Balisong Butterfly Trainer Practice Butterfly Trainer - NOT REAL - NO SHARP - Unsharpened Blade (Black + Silver)
Ideal Swan£7.004.1★1,717 rev
AOSILEY Butterfly Trainer Knife All stainless steel practice butterfly knife comb for Training(Silver)
AOSILEY£4.154.4★30 rev
Eophmi Butterfly Knife Trainer 1 Pcs Balisong Trainer Blade Free Metal Butterfly Knife Color Folding Practice Butterfly Knifes Suitable for Beginners to Practice Flipping Skills Training
Eophmi£5.464.4★32 rev
2Pack Folding Comb Unique Metal Training Butterfly Comb for Beard Brushe Styling Tool
Baosong£5.384.0★206 rev
Newest
by launch date
Pluc Butterfly Trainer Practice Tool Metal Flipping Trainer for Skill Development and Precision Handling Safe Edge Flipping Tool Durable and Portable for Home or Travel Practice
Pluc£6.512 rev
KEEDAS Integrated Forging Bushing System Aluminum Integral Channel Handle Excellent Grip Pretty Solid Best Balance and Inertia (SFS-B1)
KEEDAS£27.1816 rev
KOMUNJ 1 Piece Butterfly Comb Stainless Steel Foldable Butterfly Comb Pocket Spring Hair for Hair Barber Styling Accessories
KOMUNJ£6.1719 rev
Butterfly Comb Foldable Practice Butterfly Flipping Trick Stainless Steel Butterfly Hair Comb for Beginner Salon Beauty Tool for Trainer Lover
Generic£5.839 rev
Eophmi Butterfly Knife Trainer 1 Pcs Balisong Trainer Blade Free Metal Butterfly Knife Color Folding Practice Butterfly Knifes Suitable for Beginners to Practice Flipping Skills Training
Eophmi£5.4632 rev
Trending
90-day click momentumPluc Butterfly Trainer Practice Tool Metal Flipping Trainer for Skill Development and Precision Handling Safe Edge Flipping Tool Durable and Portable for Home or Travel Practice
Pluc£6.512.5★
KEEDAS Integrated Forging Bushing System Aluminum Integral Channel Handle Excellent Grip Pretty Solid Best Balance and Inertia (SFS-B1)
KEEDAS£27.184.3★
Dual Pivot Effective Bushing System CNC 6061 Aluminum Integral Channel Handle Stainless Steel Bottle Opener
uxcellmo£22.244.0★
Bottle Opener Stainless Steel Beer Bottle Cap Openers Butterfly Multi-Tool Gift for Friends and Family (Purple)
City Million£15.564.0★
2Pack Folding Comb Unique Metal Training Butterfly Comb for Beard Brushe Styling Tool
Baosong£5.384.0★
What buyers say about butterfly knife
What buyers praise and complain about, mined from review topics.What buyers love
“Very good quality for a cheap butterfly knife”
“Fun gadget”
“Good for dexterity in the hands and once youve mastered your simple rollouts theres a galaxy of moves and tricks”
“Very durable”
“Good value”
“Good weight and good quality and he finds it easy to use”
“Usful good material”
“Well it is as explained”
“has a really nice weight to it”
“It looks really clean”
What buyers complain about
“Broke after a few uses”
“Absolute rubbish”
“Slight problem, after a couple weeks of playing it started to squeak a bit, which could be a sign of rust”
“Make it cheaper please 3 stars”
“since it was plastic it felt terrible”
“Tragically bad falls apart so quick pin doesnt work needs tightening”
“Not like the pictures”
“just flimsy plastic clips”
“Worst design ever”
“Its not sharp at all”
Top return reasons
Common questions
- Is butterfly knife profitable to sell on Amazon United Kingdom?
- The niche generates £62K/yr across 21 tracked products. 0 of 1 products launched in the last 360 days are still selling. 90-day search growth is -34.1%. Flapen's verdict: Skip it (46/100).
- How competitive is the butterfly knife niche?
- 18 brands and 25 sellers compete. The top 5 products take 57% of clicks and top 5 brands hold 67% of demand.
- What do buyers complain about in butterfly knife?
- Top complaints mined from reviews: Durability, Quality-Overall, Rusts/Corrodes. The return rate is 0.6%.
- When does demand for butterfly knife peak?
- Demand peaks in Feb–Dec; the busiest month runs 1.7× the quietest.
- What does it cost to enter the butterfly knife niche?
- Listings span £3.52–£27.18; the average listing price is £10.48 (sweet spot $15–$100). The average incumbent carries 143 reviews — the moat a new listing must climb.