Is black and decker strimmer spool profitable to sell on Amazon United Kingdom?

The niche generates £51K/yr across 23 tracked products. 0 of 3 products launched in the last 360 days are still selling. 90-day search growth is +295.1%. Flapen's verdict: Worth a look (59/100).

How competitive is the black and decker strimmer spool niche?

14 brands and 49 sellers compete. The top 5 products take 57% of clicks and top 5 brands hold 75% of demand.

What do buyers complain about in black and decker strimmer spool?

Top complaints mined from reviews: Durability, Size-Overall, Quality-Overall. The return rate is 0.4%.

When does demand for black and decker strimmer spool peak?

Demand peaks in Apr–May–Jun–Jul–Aug; the busiest month runs 79.1× the quietest.

What does it cost to enter the black and decker strimmer spool niche?

Listings span £4.14–£10.38; the average listing price is £7.57 (sweet spot $15–$100). The average incumbent carries 1,257 reviews — the moat a new listing must climb.

black and decker strimmer spool

Worth a look

Shows demand growing +295.1% this quarter, but a failed launch gate (market size, growth, or returns) keeps it on the watch list.

Growth

Incredible+295.1%

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

Returns

Incredible0.4%

return rate — above 5% kills the launch gate

Conversion

Great10.1%

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

Quality gap

Great4.3★

avg incumbent rating — lower means beatable quality

Review moat

Good1,257

avg incumbent reviews — the moat a new listing must climb

Brand share

Okay75%

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

Competition

Okay57%

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

Avg price

Bad£7.57

avg listing price — sweet spot $15–$100

Market size

Bad£51K

£51K/yr · 67K searches

Price range

Bad£4.14–£10.38

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

Signals Trending

According to Flapen's Amazon United Kingdom niche tracking, black and decker strimmer spool is a £51K/yr Amazon United Kingdom market (67K searches/yr). The top 5 brands hold 75% of demand. Demand peaks in Apr–May–Jun–Jul–Aug. Verdict: Worth a look — 59/100.

Data updated Jul 26, 2026 · scored weekly · How we score niches

black and decker strimmer spool market data

Units sold / yr: 6K–8K; avg 250–500/product
Revenue / yr: £45K–£61K; units × avg price
Conversion rate: 10.1%
Avg BSR: #103
Page quality: 0%
Prime: 100%
Sponsored: 74%
Out of stock: 0.0%
Avg brand age: 34 months
Avg seller age: 171 days

Competition & brand share

The top 5 products take 57% of clicks — established leaders, but buyers still shop beyond them.

Brands

14 falling

Sellers

Top-5 brand share

75%

Top 20: 100%

Top-5 click share

57%

Top 20: 97%

Open market

20%

BLACK+DECKER36%
CKCSHI20%
Toumett8%
Wlleoaa6%
Uchidodo5%
Poweka5%

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — +295.1% search growth over the last 90 days.

Peak months: Apr, May, Jun, Jul, Aug · busiest ÷ quietest = 79.1×

Open Trend

Top black and decker strimmer spool search terms

black and decker strimmer spool35K/yr +343.3%9.1% conv.
black and decker strimmer line11K/yr +259.4%7.3% conv.
black and decker strimmer parts7K/yr +185.3%2.8% conv.
black and decker strimmer wire6K/yr +233.8%7.2% conv.
strimmer wire black and decker4K/yr +372.5%9.8% conv.
black & decker strimmer spool4K/yr +285.8%7.2% conv.

All search terms

Top black and decker strimmer spool 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 23 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

CKCSHI 3pcs Spool Trimmer Spool & Line Compatible with Black Decker Replace AF-100 ST5530-GB GLC3630L20-GB STC1820PC-GB BESTA530-GB BESTA525-GB (With 1 Cap 1 Spring)

CKCSHI£6.494.5★223 rev

BLACK+DECKER Spool and Line 10 m for Reflex Strimmer Nylon Wire 1.6 mm Diameter Transparent and Resistant A6481-XJ

BLACK+DECKER£5.164.5★9,442 rev

Wlleoaa 4 PCS Black and Decker Strimmer Spool Spool Trimmer Spools & Line Compatible with Black Decker Replacement Spools for Reflex Strimmer AF-100 ST5530-GB GLC3630L20-GB STC1820PC-GB BESTA530-GB

Wlleoaa£6.143.8★9 rev

BLACK+DECKER A6487 Heavy Duty Trimmer Line 10 x 3 mm GL680/685/690

BLACK+DECKER£7.604.5★1,969 rev

4 Pcs Strimmer Spool for Black and Decker Strimmer Wire Refills 30ft Each AF-100 Strimmer Line 1.65mm Grass Trimmer Wire Replacement for GL400/A6485/ST5530-GB/GLC3630L20-GB/STC1820PC-GB/BESTA525-530

Toumett£7.474.4★134 rev

Newest

by launch date

Oryzium 3pcs Strimmer Spool Replacement AF-100 Grass Trimmer Wire

Oryzium£6.7025 rev

3mo ago

2PCS Strimmer Spool Replacement Spool and Line for Black and Decker Spools String Trimmers Tool Double Autofeed Spools Replacement Compatible for GL250/ GL310/ GL360 Models

SNMYGS£6.009 rev

4mo ago

Wlleoaa 4 PCS Black and Decker Strimmer Spool Spool Trimmer Spools & Line Compatible with Black Decker Replacement Spools for Reflex Strimmer AF-100 ST5530-GB GLC3630L20-GB STC1820PC-GB BESTA530-GB

Wlleoaa£6.149 rev

6mo ago

Flaveano Strimmer Wire for Black and Decker GL680/685/690 Trimmer 20 Replacment Strimmer Line

Flaveano£9.2913 rev

1y ago

4 Pcs Strimmer Spool for Black and Decker Strimmer Wire Refills 30ft Each AF-100 Strimmer Line 1.65mm Grass Trimmer Wire Replacement for GL400/A6485/ST5530-GB/GLC3630L20-GB/STC1820PC-GB/BESTA525-530

Toumett£7.47134 rev

1y ago

What buyers say about black and decker strimmer spool

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

What buyers love

Size-Overall25%

“Exact fit”

Value For Money25%

“well worth the money”

Quality-Overall17%

“Excellent Product”

Advertised Vs Actual Product16%

“This is exactly what I ordered”

Cutting/Trimming5%

“Very robust and cut well”

Ease Of Use2%

“easy to use”

Assembly/Installation2%

“Installation is quick”

Durability2%

“the cord is also very durable”

Strength1%

“strong enough for more overgrown areas”

Compatibility-Overall1%

“GL570 compatible”

What buyers complain about

Durability26%

“Break after a few seconds of use”

Size-Overall24%

“Didnt fit as suggested”

Quality-Overall10%

“Garbage, read the review”

Value For Money8%

“lot more expensive”

Defective Material/Parts6%

“Stay away and buy genuine parts”

Ease Of Use4%

“Not easy to find”

Maintenance And Repair4%

“Each spool had to be replaced within a few minutes of use”

Compatibility-Overall4%

“As many others have reported this does not fit the GL650”

Ethical Trade/Fair Trade4%

“Dishonest sale”

Advertised Vs Actual Product2%

“Dreadful, did not fit my model as described”

Top return reasons

Size-Overall82%

Compatibility-Overall5%

Advertised Vs Actual Product3%

Durability2%

Functionality-Overall2%

Defective Material/Parts2%

Quality-Overall1%

Color1%

Charging0%

Product Condition0%

Common questions

Is black and decker strimmer spool profitable to sell on Amazon United Kingdom?: The niche generates £51K/yr across 23 tracked products. 0 of 3 products launched in the last 360 days are still selling. 90-day search growth is +295.1%. Flapen's verdict: Worth a look (59/100).
How competitive is the black and decker strimmer spool niche?: 14 brands and 49 sellers compete. The top 5 products take 57% of clicks and top 5 brands hold 75% of demand.
What do buyers complain about in black and decker strimmer spool?: Top complaints mined from reviews: Durability, Size-Overall, Quality-Overall. The return rate is 0.4%.
When does demand for black and decker strimmer spool peak?: Demand peaks in Apr–May–Jun–Jul–Aug; the busiest month runs 79.1× the quietest.
What does it cost to enter the black and decker strimmer spool niche?: Listings span £4.14–£10.38; the average listing price is £7.57 (sweet spot $15–$100). The average incumbent carries 1,257 reviews — the moat a new listing must climb.