Is ulnar gutter splint profitable to sell on Amazon United States?

The niche generates $148K/yr across 19 tracked products. 5 of 7 products launched in the last 360 days are still selling. 90-day search growth is +8.5%. Flapen's verdict: Skip it (47/100).

How competitive is the ulnar gutter splint niche?

11 brands and 14 sellers compete. The top 5 products take 59% of clicks and top 5 brands hold 85% of demand.

What do buyers complain about in ulnar gutter splint?

Top complaints mined from reviews: Size-Overall, Pain Relief-Overall, Compression. The return rate is 3.6%.

When does demand for ulnar gutter splint peak?

Demand is steady year-round — the busiest month runs 1.5× the quietest.

What does it cost to enter the ulnar gutter splint niche?

Listings span $12.66–$34.25; the average listing price is $24.23 (sweet spot $15–$100). The average incumbent carries 4,073 reviews — the moat a new listing must climb.

ulnar gutter splint

Skip it

A deep review moat (4,073 avg reviews) — this niche doesn't clear our bar today.

Avg price

Incredible$24.23

avg listing price — sweet spot $15–$100

Price range

Great$12.66–$34.25

cheapest to priciest tracked listing — scored on the share inside $15–$100

Quality gap

Good4.3★

avg incumbent rating — lower means beatable quality

Conversion

Good4.8%

search→purchase rate — share of searches ending in a sale

Competition

Okay59%

top-5 click share — leaders hold, buyers still browse

Returns

Okay3.6%

return rate — above 5% kills the launch gate

Growth

Okay+8.5%

90-day search growth — must beat 0% to launch

Brand share

Okay85%

top-5 brand share — brands hold most of the demand

Market size

Okay$148K

$148K/yr · 129K searches

Review moat

Bad4,072.63

avg incumbent reviews — the moat a new listing must climb

According to Flapen's Amazon United States niche tracking, ulnar gutter splint is a $148K/yr Amazon United States market (129K searches/yr). The top 5 brands hold 85% of demand. Verdict: Skip it — 47/100.

Data updated Jul 14, 2026 · scored weekly · How we score niches

ulnar gutter splint market data

Units sold / yr: 6K–8K; avg 100–250/product
Revenue / yr: $145K–$194K; units × avg price
Conversion rate: 4.8%
Avg BSR: #102
Page quality: 0%
Prime: 100%
Sponsored: 100%
Out of stock: 0.6%
Avg brand age: 51 months
Avg seller age: 184 days

Competition & brand share

The top 5 products take 59% of clicks — established leaders, but buyers still shop beyond them.

Brands

11 falling

Sellers

Top-5 brand share

85%

Top 20: 100%

Top-5 click share

59%

Top 20: 100%

Open market

11%

ARMSTRONG AMERICA54%
GenetGo12%
Ezy Wrap7%
Ovation Medical7%
MEDILYMER6%
Vive4%
Open — no brand owns it (5 brands, 11%)

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — +8.5% search growth over the last 90 days.

No pronounced peak months · busiest ÷ quietest = 1.5×

Open Trend

Top ulnar gutter splint search terms

ulnar gutter splint26K/yr +50.1%3.4% conv.
boxer fracture splint right hand20K/yr +0.4%5.8% conv.
ulnar gutter splint right hand13K/yr -13.4%6.2% conv.
metacarpal splint10K/yr +24.8%1.8% conv.
boxers fracture splint right hand8K/yr -1.7%7.0% conv.
ulnar gutter splint left hand7K/yr -10.4%5.9% conv.
boxer splint6K/yr -6.1%3.9% conv.
boxer fracture splint left hand8K/yr -12.5%4.5% conv.
boxer fracture splint8K/yr +12.3%2.9% conv.
boxer splint right hand5K/yr +6.0%5.4% conv.

All search terms

Top ulnar gutter splint 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.

Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 19 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

ARMSTRONG AMERICA$29.324.5★256 rev

Metacarpal Finger Splint Hand Brace | Little Pinky Finger Splint For Boxer Fractures l Broken Ring or Hands Cast |Trigger Immobilizer Straightener l Ulnar Gutter Support | Boxer Brace | RIGHT S/M

ARMSTRONG AMERICA$26.004.2★2,958 rev

ARMSTRONG AMERICA$29.304.5★256 rev

GenetGo Metacarpal Finger Splint Hand Brace - Pinky Ring Finger Immobilizer For Boxer Fractures -Fit for Both Left or Right Hand (Medium)

GenetGo$15.874.4★339 rev

Ezy Wrap Boxer Fracture Splint Hand Brace with Finger Support Wrist Brace Right Hand with Adjustable Fit Hypoallergenic Material & Soft Edges Designed for Metacarpal Fracture Sprain or Swelling

Ezy Wrap$34.254.4★772 rev

Newest

by launch date

MEDILYMER Metacarpal Finger Splint Hand Brace Pinky Finger Splint for Boxer Fractures Two Finger Brace for 4th or 5th Finger Ulnar Gutter Splint Right Hand and Left (XS/S)

MEDILYMER$17.6369 rev

9mo ago

Ovation Medical Boxer Splint - Adjustable Hand and Finger Splint for Metacarpal Ulnar Gutter and Radial Gutter Fractures - Lightweight Padded Immobilizing Hand Brace (Left)

Ovation Medical$29.1346 rev

10mo ago

Ovation Medical Boxer Splint - Adjustable Hand and Finger Splint for Metacarpal Ulnar Gutter and Radial Gutter Fractures - Lightweight Padded Immobilizing Hand Brace (Right)

Ovation Medical$29.3046 rev

10mo ago

ARMSTRONG AMERICA$29.32256 rev

11mo ago

ARMSTRONG AMERICA$29.30256 rev

11mo ago

What buyers say about ulnar gutter splint

What buyers praise and complain about, mined from review topics.

What buyers love

Size-Overall16%

“the fit is accurate”

Comfort-Overall15%

“Comfortable to wear”

Quality-Overall12%

“these are very durable quality”

Grip7%

“help with grip”

Efficiency5%

“Does the job well”

Advertised Vs Actual Product5%

“As advertised”

Compression3%

“The compression is adequate”

Joint Pain3%

“They also help relieve the fatigue that comes from the arthritis”

Durability3%

“durable”

Ease Of Use3%

“easy to use”

What buyers complain about

Size-Overall21%

“Too big”

Pain Relief-Overall9%

“it actually hurt”

Compression6%

“Not enough compression”

Durability5%

“came apart 1 time I wore them”

Quality-Overall5%

“Cheap made”

Comfort-Overall5%

“Not the most comfortable”

Value For Money3%

“overpriced”

Functionality-Overall3%

“Did not work”

Grip3%

“Slides down hand”

Stitch/Finish/Polish2%

“Sewing Defects”

Top return reasons

Size-Overall65%

Advertised Vs Actual Product6%

Comfort-Overall5%

Functionality-Overall4%

Joint Pain4%

Compression2%

Grip1%

Pain Relief-Overall1%

Stitch/Finish/Polish1%

Product Condition1%

Common questions

Is ulnar gutter splint profitable to sell on Amazon United States?: The niche generates $148K/yr across 19 tracked products. 5 of 7 products launched in the last 360 days are still selling. 90-day search growth is +8.5%. Flapen's verdict: Skip it (47/100).
How competitive is the ulnar gutter splint niche?: 11 brands and 14 sellers compete. The top 5 products take 59% of clicks and top 5 brands hold 85% of demand.
What do buyers complain about in ulnar gutter splint?: Top complaints mined from reviews: Size-Overall, Pain Relief-Overall, Compression. The return rate is 3.6%.
When does demand for ulnar gutter splint peak?: Demand is steady year-round — the busiest month runs 1.5× the quietest.
What does it cost to enter the ulnar gutter splint niche?: Listings span $12.66–$34.25; the average listing price is $24.23 (sweet spot $15–$100). The average incumbent carries 4,073 reviews — the moat a new listing must climb.