kobalt weed eater string
Worth a lookShows demand growing +376.9% this quarter, but brand-locked demand (top 5 brands take 100% of clicks) keeps it on the watch list.
Growth
Incredible+376.9%90-day search growth — must beat 0% to launch
Review moat
Great303.17avg incumbent reviews — the moat a new listing must climb
Conversion
Great9.2%search→purchase rate — share of searches ending in a sale
Quality gap
Great4.2★avg incumbent rating — lower means beatable quality
Avg price
Good$14.50avg listing price — sweet spot $15–$100
Returns
Good2.7%return rate — above 5% kills the launch gate
Price range
Good$11.15–$19.73cheapest to priciest tracked listing — scored on the share inside $15–$100
Market size
Bad$58K$58K/yr · 43K searches
Competition
Bad96%top-5 click share — a locked-up shelf
Brand share
Bad100%top-5 brand share — brand-locked demand
According to Flapen's Amazon United States niche tracking, kobalt weed eater string is a $58K/yr Amazon United States market (43K searches/yr). The top 5 brands hold 100% of demand. Demand peaks in May–Jun–Jul–Aug. Verdict: Worth a look — 51/100.
Data updated Jul 16, 2026 · scored weekly · How we score niches
kobalt weed eater string market data
- Units sold / yr
- 4K–5K
- avg 500–750/product
- Revenue / yr
- $58K–$73K
- units × avg price
- Conversion rate
- 9.2%
- Avg BSR
- #439
- Page quality
- 0%
- Prime
- 100%
- Sponsored
- 83%
- Out of stock
- 25.0%
- Avg brand age
- 29 months
- Avg seller age
- 175 days
Competition & brand share
The top 5 products capture 96% of clicks — a locked-up shelf that new listings rarely crack.Brands
5 falling
Sellers
10
Top-5 brand share
100%
Top 20: 100%
Top-5 click share
96%
Top 20: 100%
Open market
0%
- Kobalt46%
- QUASION31%
- Eyoloty11%
- Kaberalty9%
- Evenlinkics4%
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — +376.9% search growth over the last 90 days.Peak months: May, Jun, Jul, Aug · busiest ÷ quietest = 32.6×
Top kobalt weed eater string search terms
- kobalt weed eater string29K/yr
- kobalt string trimmer line3K/yr
- kobalt trimmer line3K/yr
- kobalt replacement spool3K/yr
- kobalt trimmer string3K/yr
- kobalt 40v weed eater string2K/yr
Top kobalt weed eater string 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 6 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Kobalt 20-ft Spool 0.065-in Trimmer Line - for KST - 120X string trimmer
Kobalt$14.834.0★1,431 rev
QUASION KST-120X Weed Eater String Trimmer Line 0.065 20Ft 6-Pack Compatible with Kobalt 40V KST 120X-06 KST 2040-06 Weed Wacker String Trimmer Pre-Wound Dual Line Spool
QUASION$13.514.2★173 rev
Eyoloty KSLA 58040-03 Pre-Cut Twisted Line 0.080 208Ft Compatible with Kobalt 5218445 4926600 623439 1130001 820915 1160325 String Trimmers KAL 580-06 Replacement Trimmers Line for Kobalt (12-Pack)
Eyoloty$19.734.2★42 rev
Kaberalty KLS 124-03 String Trimmer Replacement Dual Line 0.080 16ft Compatible with Kobalt 24V KST 1124B-03 KST 2024A-03 KST 2224B-03 and KST 4024A-03 KST 4024AB-03 (Item# 1504979 1137837 3488480)
Kaberalty$14.144.2★80 rev
QUASION KLS 124-03 Spooled Trimmer Line 0.080-in 16Ft 3-Pack Compatible with Kobalt 24-Volt Max Weed Wacker String Trimmer Dual-line Replacement Spool Compatible with Kobalt Weed Eater String
QUASION$13.624.0★79 rev
Newest
by launch date
Evenlinkics KST 120X-06 Replacement SpoolCompatible Kobalt Weed Eaterfor Kobalt KST 120X Trimmer Spool for Kobalt Weed Eater String (6 Spools)
Evenlinkics$11.1514 rev
Eyoloty KSLA 58040-03 Pre-Cut Twisted Line 0.080 208Ft Compatible with Kobalt 5218445 4926600 623439 1130001 820915 1160325 String Trimmers KAL 580-06 Replacement Trimmers Line for Kobalt (12-Pack)
Eyoloty$19.7342 rev
Kaberalty KLS 124-03 String Trimmer Replacement Dual Line 0.080 16ft Compatible with Kobalt 24V KST 1124B-03 KST 2024A-03 KST 2224B-03 and KST 4024A-03 KST 4024AB-03 (Item# 1504979 1137837 3488480)
Kaberalty$14.1480 rev
QUASION KLS 124-03 Spooled Trimmer Line 0.080-in 16Ft 3-Pack Compatible with Kobalt 24-Volt Max Weed Wacker String Trimmer Dual-line Replacement Spool Compatible with Kobalt Weed Eater String
QUASION$13.6279 rev
QUASION KST-120X Weed Eater String Trimmer Line 0.065 20Ft 6-Pack Compatible with Kobalt 40V KST 120X-06 KST 2040-06 Weed Wacker String Trimmer Pre-Wound Dual Line Spool
QUASION$13.51173 rev
Trending
90-day click momentumQUASION KLS 124-03 Spooled Trimmer Line 0.080-in 16Ft 3-Pack Compatible with Kobalt 24-Volt Max Weed Wacker String Trimmer Dual-line Replacement Spool Compatible with Kobalt Weed Eater String
QUASION$13.624.0★
Kobalt 20-ft Spool 0.065-in Trimmer Line - for KST - 120X string trimmer
Kobalt$14.834.0★
Eyoloty KSLA 58040-03 Pre-Cut Twisted Line 0.080 208Ft Compatible with Kobalt 5218445 4926600 623439 1130001 820915 1160325 String Trimmers KAL 580-06 Replacement Trimmers Line for Kobalt (12-Pack)
Eyoloty$19.734.2★
QUASION KST-120X Weed Eater String Trimmer Line 0.065 20Ft 6-Pack Compatible with Kobalt 40V KST 120X-06 KST 2040-06 Weed Wacker String Trimmer Pre-Wound Dual Line Spool
QUASION$13.514.2★
Kaberalty KLS 124-03 String Trimmer Replacement Dual Line 0.080 16ft Compatible with Kobalt 24V KST 1124B-03 KST 2024A-03 KST 2224B-03 and KST 4024A-03 KST 4024AB-03 (Item# 1504979 1137837 3488480)
Kaberalty$14.144.2★
What buyers say about kobalt weed eater string
What buyers praise and complain about, mined from review topics.What buyers love
“Perfect fit”
“Very good trimmer lines string”
“Cost far less than the OEM string recommended by the string line trimmer manufacturer”
“As described”
“It works fine”
“Easy and perfect”
“It's convenient having the pre cut line”
What buyers complain about
“Dont buy this cheap crap”
“Seems like it doesnt fit very well”
“Garbage cheap thin line is not”
“Bump head gets jammed”
“what a waste”
“it's difficult to install”
“Instantly falls apart”
“Breaks rather easy”
Top return reasons
Common questions
- Is kobalt weed eater string profitable to sell on Amazon United States?
- The niche generates $58K/yr across 6 tracked products. 90-day search growth is +376.9%. Flapen's verdict: Worth a look (51/100).
- How competitive is the kobalt weed eater string niche?
- 5 brands and 10 sellers compete. The top 5 products take 96% of clicks and top 5 brands hold 100% of demand.
- What do buyers complain about in kobalt weed eater string?
- Top complaints mined from reviews: Quality-Overall, Size-Overall, Thickness. The return rate is 2.7%.
- When does demand for kobalt weed eater string peak?
- Demand peaks in May–Jun–Jul–Aug; the busiest month runs 32.6× the quietest.
- What does it cost to enter the kobalt weed eater string niche?
- Listings span $11.15–$19.73; the average listing price is $14.50 (sweet spot $15–$100). The average incumbent carries 303 reviews — the moat a new listing must climb.