Knuckle Brace
Skip itBrand-locked demand (top 5 brands take 100% of clicks) — this niche doesn't clear our bar today.
Conversion
Great11.3%search→purchase rate — share of searches ending in a sale
Quality gap
Great4.2★avg incumbent rating — lower means beatable quality
Avg price
Good$13.13avg listing price — sweet spot $15–$100
Price range
Good$7.99–$24.67cheapest to priciest tracked listing — scored on the share inside $15–$100
Returns
Good3.0%return rate — above 5% kills the launch gate
Growth
Okay+13.9%90-day search growth — must beat 0% to launch
Market size
Bad$72K$72K/yr · 49K searches
Review moat
Bad21,955.13avg incumbent reviews — the moat a new listing must climb
Competition
Bad91%top-5 click share — a locked-up shelf
Brand share
Bad100%top-5 brand share — brand-locked demand
Is knuckle brace profitable on Amazon?
According to Flapen's Amazon United States niche tracking, knuckle brace is a $72K/yr Amazon United States market (49K searches/yr). The top 5 brands hold 100% of demand. Verdict: Skip it — 39/100.
Data updated Jul 14, 2026 · scored weekly · How we score niches
knuckle brace market size & sales
Units sold, revenue, conversion and listing quality across the tracked shelf.- Units sold / yr
- 6K–8K
- avg 750–1,000/product
- Revenue / yr
- $79K–$105K
- units × avg price
- Conversion rate
- 11.3%
- Avg BSR
- #14
- Page quality
- 0%
- Prime
- 100%
- Sponsored
- 100%
- Out of stock
- 0.0%
- Avg brand age
- 53 months
- Avg seller age
- 173 days
Competition: brands, sellers & click share
The top 5 products capture 91% of clicks — a locked-up shelf that new listings rarely crack.Brands
4 falling
Sellers
9
Top-5 brand share
100%
Top 20: 100%
Top-5 click share
91%
Top 20: 100%
Open market
0%
- Vive74%
- ComfyBrace21%
- Copper Compression2%
- Sumifun2%
- Open — no brand owns it (0%)
knuckle brace demand & seasonality
Weekly Amazon search volume, last 31 weeks — +13.9% search growth over the last 90 days.Top knuckle brace search terms shoppers use
The exact queries shoppers type, with yearly volume, growth and conversion.- vive trigger finger splint19K/yr
- knuckle brace17K/yr
- mcp splint10K/yr
- vive finger splint4K/yr
Top knuckle brace 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 8 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Vive Trigger Finger Splint - Support Brace for Middle Ring Index Thumb and Pinky - Straightening Curved Bent Locked Stenosing Tenosynovitis Tendon Lock Release Knuckle Stabilizer - HSA/FSA
Vive$9.194.2★13,915 rev
ComfyBrace Copper Infused Compression Arthritis Gloves for Hand & Finger Relief from pain/swelling caused by Rheumatoid Arthritis Carpal Tunnel Tendonitis and Poor Circulation Fits Men & Women
ComfyBrace$13.174.3★51,226 rev
Vive Finger Splint (2 Pack) - Universal Finger Straightener - Broken and Trigger Finger Splints - Brace for Arthritis Pain and Support - Sprain Relief for Middle Index Ring Pinky Fingers (Black)
Vive$7.994.5★3,713 rev
Vive Rheumatoid Arthritis Gloves - Men and Women Fingerless Compression Wrap for Hand Pain and Osteoarthritis - Black Hand Wrap for Arthritic Joint Symptom Relief - Open Finger Fit
Vive$9.194.3★23,007 rev
Vive Trigger Finger Splint Support Brace for Straightening Curved Bent Locked & Stenosing Tenosynovitis Hands - Tendon Release & Pain Relief (2-Pack Black) - HSA/FSA Approved
Vive$16.914.2★13,915 rev
Newest
by launch dateVive Finger Splint (2 Pack) - Universal Finger Straightener - Broken and Trigger Finger Splints - Brace for Arthritis Pain and Support - Sprain Relief for Middle Index Ring Pinky Fingers (Black)
Vive$7.993,713 rev
Vive Trigger Finger Splint Brace - Middle Pinky Pointer Ring and Thumb Support - Palm Strap Included - Straighten Curved or Broken Fingers - Adjustable Breathable Fit - Aluminum Pain Relief Guard
Vive$13.96590 rev
Sumifun Finger Brace Trigger Finger Splint for Index Middle Ring Pinky Finger Arthritis Pain Tendon Injury Broken Mallet Finger Stabilizer Supports for Dislocated Knuckle Immobilizer Wrap for
Sumifun$9.983,404 rev
Vive Trigger Finger Splint Support Brace for Straightening Curved Bent Locked & Stenosing Tenosynovitis Hands - Tendon Release & Pain Relief (2-Pack Black) - HSA/FSA Approved
Vive$16.9113,915 rev
ComfyBrace Copper Infused Compression Arthritis Gloves for Hand & Finger Relief from pain/swelling caused by Rheumatoid Arthritis Carpal Tunnel Tendonitis and Poor Circulation Fits Men & Women
ComfyBrace$13.1751,226 rev
Trending
90-day click momentumComfyBrace Copper Infused Compression Arthritis Gloves for Hand & Finger Relief from pain/swelling caused by Rheumatoid Arthritis Carpal Tunnel Tendonitis and Poor Circulation Fits Men & Women
ComfyBrace$13.174.3★
Vive Trigger Finger Splint Support Brace for Straightening Curved Bent Locked & Stenosing Tenosynovitis Hands - Tendon Release & Pain Relief (2-Pack Black) - HSA/FSA Approved
Vive$16.914.2★
Vive Trigger Finger Splint Brace - Middle Pinky Pointer Ring and Thumb Support - Palm Strap Included - Straighten Curved or Broken Fingers - Adjustable Breathable Fit - Aluminum Pain Relief Guard
Vive$13.964.2★
Vive Finger Splint (2 Pack) - Universal Finger Straightener - Broken and Trigger Finger Splints - Brace for Arthritis Pain and Support - Sprain Relief for Middle Index Ring Pinky Fingers (Black)
Vive$7.994.5★
Copper Compression Arthritis Gloves | Fingerless Arthritis Carpal Tunnel Pain Relief Gloves For Men & Women | Hand Support Wrist Brace For Rheumatoid Tendonitis Swelling Crocheting Typing (M)
Copper Compression$24.674.2★
What reviews say buyers love and hate about knuckle brace
What buyers praise and complain about, mined from review topics.What buyers love
“was comfortable to use”
“it's good quality and sufficiently adjustable”
“Fits like a glove”
“Works Well”
“doesn't slip off”
“As advertised”
“protects the joint well”
“Ease of use”
“Good Value”
“comfortable good support”
What buyers complain about
“Didn't fit”
“Pain”
“Did not help”
“Fell apart after 3 days”
“It would slide off”
“Uncomfortable to wear”
“Cheaply made”
“Not enough compression”
“Not worth the price at all”
“the Velcro is already not sticking”
Top return reasons
Common knuckle brace questions
- Is knuckle brace profitable to sell on Amazon United States?
- The niche generates $72K/yr across 8 tracked products. 90-day search growth is +13.9%. Flapen's verdict: Skip it (39/100).
- How competitive is the knuckle brace niche?
- 4 brands and 9 sellers compete. The top 5 products take 91% of clicks and top 5 brands hold 100% of demand.
- What do buyers complain about in knuckle brace?
- Top complaints mined from reviews: Size-Overall, Pain Relief-Overall, Functionality-Overall. The return rate is 3.0%.
- What does it cost to enter the knuckle brace niche?
- Listings span $7.99–$24.67; the average listing price is $13.13 (sweet spot $15–$100). The average incumbent carries 21,955 reviews — the moat a new listing must climb.