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Tendon Hammer

a concentrated shelf (top 5 take 90% of clicks) — Tendon Hammer doesn't clear our bar today.

Flapen Score

41
Skip it
Market size 9Growth 16Conversion 95Competition 8Returns 99Price range 29Avg price 34Brand share 25Review moat 87Quality gap 70
This niche Category average

Is Tendon Hammer profitable on Amazon?

According to Flapen's Amazon United Kingdom niche tracking, Tendon Hammer is a £36K/yr Amazon United Kingdom market (29K searches/yr). The top 5 brands hold 90% of demand. Verdict: Skip it — 41/100.

Tendon Hammer: the Amazon niche in one read

Everything a seller checks before entering, in three answers.

Is the demand real?

Not really. Search demand moved -18.6% over the last 90 days and 12.1% of searches end in a purchase.

£36K

revenue / yr

Units sold / yr5K
Search volume / yr-18.6%29K
Conversion rate12.1%
Avg price£10.08

Who owns the niche?

The top 5 brands hold 90% of demand, so 10% of the market is open.

10%

open market share

Brands · sellers8 · 11
Top-5 product click share90%
Open market10%
Avg brand age52 months

Is there a way in?

Listing quality. The average product page scores 0/100 on content standards. Incumbents average 4.3★ — the gap to enter on.

0/100

page quality · 8 products

Sponsored placement88%
New entrants (1y)4· 0 succeeded
Avg rating4.3★
Avg reviews260

Top Tendon Hammer products & what they sell for

Every tracked product — its share of the shelf, its review moat, and what it sells for.

Competition: brands, sellers & click share

The top 5 products capture 90% of clicks — a locked-up shelf that new listings rarely crack.

£0£5K£11K£16K£21K1101001K10K Review Count Sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)2 products missing review or click data not plotted

Brands

8 rising

Sellers

11

Top-5 brand share

90%

Top 20: 100%

Top-5 click share

90%

Top 20: 100%

Open market

6%

  • Valuemed46%
  • Primacare18%
  • MDF Instruments14%
  • BE-TOOL7%
  • Piaeny5%
  • suction4%
  • Open — no brand owns it (2 brands, 6%)

Tendon Hammer demand & seasonality

Weekly search volume, with the niche's key stats alongside.

Volume29KCVR12.1%Products8Brands8Top 5 Brands90%OOS Rate24.6%Rating4.3★Reviews260Avg BSR#212
800600May '26May '26May '26May '26Jun '26Jun '26Jun '26Jun '26Jul '26Jul '26Jul '26

What reviews say buyers love and hate about Tendon Hammer

What buyers mention most, as a share of all reviews.

What buyers love

92% of reviews
Quality-Overall42%

Good Quality

Advertised Vs Actual Product25%

As it says on the listing

Strength25%

Firm

What buyers complain about

50% of reviews
Size-Overall50%

A little bigger than I expected

Tendon Hammer return rate & reasons

Why buyers send it back, as a share of all return requests.

0.3%

Return rate

67%

Fixable by listing

The "fixable" share counts expectation-mismatch reasons — size, look, advertised-vs-actual — that better copy and images address.

1Size-Overall
50%
2Functionality-Overall
17%
3Advertised Vs Actual Product
17%
4Defective Material/Parts
17%

Common Tendon Hammer questions

The questions sellers ask about this niche, answered from the tracked metrics.

Flapen scores Tendon Hammer 41/100 on Amazon United Kingdom — Skip it. The niche generates £36K/yr across 8 tracked products. 0 of 4 products launched in the last 360 days are still selling. Search demand moved -18.6% over the last 90 days.
Tendon Hammer buyers on Amazon United Kingdom complain most about Size-Overall, the themes mined from the niche's reviews. Its return rate is 0.3%.