Cookies and audience measurement
We use Google Analytics to measure how the site is used and to improve our content. It only loads with your consent: you can decline at no cost and change your mind at any time. Privacy policy
This post contains affiliate links. As an Amazon Associate we earn from qualifying purchases.
Our picks are based on Amazon bestseller rankings, Amazon customer ratings, and product availability. We update our recommendations regularly to ensure accuracy.
Maintaining a neat and tidy lawn requires the right tools, and for many, that means a string trimmer. The spool of line is the heart of this tool, directly impacting its cutting efficiency and performance. Selecting the correct spool ensures your trimmer operates smoothly, tackles tough weeds effectively, and prolongs the life of your equipment.
Automatic Feed Spool: Eventronic replacement spool for Black and Decker weed eater is easy to use , automatically feeds the trimmer by centrifugal force, reducing the tediousness of manually sorting out the replacement trimmer line spool during work.
Abrasion Resistant: Eventronic trimmer string for BLACK+DECKER weed eater is constructed with an upgraded nylon polyamide material that has a tensile strength of over 100 lbs and which is 30% more durable than other brands for longer life.
Efficient Cutting: Eventronic Trimmer spool line for Black&Decker weed eater is pliable and flexible, allowing for the line to stretch and cushion on impact with hard surfaces, and increasing cutting efficiency by 50%, making each spool to cut more weeds
Not Instructions in it, please install yourself. Snap into place for quick and effortless replace without tools. Professional machine cutting and automatic winding is more time-saving than manual winding, reduces damage for string grass trimmer and not...
30ft 0.065 inches line replacement spool designed for Black&Decker original spools models AF-100, AF-100-3ZP, AF-100-BKP, AF-100-2. Length 30 feet trimmer line provides a wider range of mowing area. 0.065 inches diameter wearable line supports fast...
The Line Trimmer Weed Eater Spool for Black & Decker uses reliable polyamide nylon thread, pliable and flexible and long service life. Use centrifugal force and aerodynamics to reduce drag and achieve fast cutting. The weed wacker cap replacement is tough...
EFFICIENT CUTTING: 0.065-Inch durable polyamide nylon thread (30 FT. long/pcs), flexible and long service life. Use centrifugal force and aerodynamics to reduce drag easily cuts through grass and weeds
HIGH QUALITY: Pliable and flexible allowing for the line to stretch and cushion on impact with hard surfaces. Automatic feeding system to change spools eliminates the time-consuming task of manually winding the line. Makes mowing the lawn easier and more...
ABRASION RESISTANT: The trimmer line is made of improved nylon polyamide material with a tensile strength of over 100 lb, which is 30% more durable than other brands and lasts longer
Compatible with Multiple Ryobi Cordless Trimmers Models:This line string trimmer replacement spool is compatible with Ryobi ONE+ Cordless Trimmer Models: 18V, 24V, 40V.
Automatic Feed Spool:Eventronic weed wacker string for Ryobi weed eater is easy to use , automatically feeds the trimmer by centrifugal force, reducing the tediousness of manually sorting out the replacement trimmer line spool during work.
Abrasion Resistant:Eventronic trimmer string for Ryobi weed eater is constructed with an upgraded nylon polyamide material that has a tensile strength of over 100 lbs and which is 30% more durable than other brands for longer life.
Efficient Cutting: Eventronic weed eater string for Ryobi weed wacker is pliable and flexible, allowing for the line to stretch and cushion on impact with hard surfaces, and increasing cutting efficiency by 50%, making each spool to cut more weeds.
【High Efficiency】Featuring an innovative square shape, this weed wacker string provides sharp edges for an aerodynamic cutting experience. The unique design significantly increases the cutting surface area by 300%, delivering even-cut edges and a...
【Heavy Duty Weed Eater String】Stop struggling with thin lines that break easily. Our newly upgraded weed eater string is crafted from premium Polyamide material. With a massive 110 LB Tensile weight and High Impact Resistance, this heavy-duty trimmer...
【Abrasion & Crack Resistant】Engineered for professionals, our string trimmer line boasts exceptional abrasion resistance and high crack resistance. The advanced material science extends the deterioration cycle to 5 years, making it a cost-efficient...
【Effortless & Reduced Tangling】Our .080" trimmer line heavy duty is precision-wound to minimize misfeeds, reduce jamming, and reduce tangling. This effortless & uninterrupted design allows you to save working time, providing a smooth, continuous feed...
Efficient Cutting: 0.065-Inch durable weed eater string is made of polyamide nylon thread, flexible and long service life. Use centrifugal force and aerodynamics to reduce drag easily cuts through grass and weeds
High Quality: (WA0010)Replacement trimmer spool line is pliable and flexible allowing for the line to stretch and cushion on impact with hard surfaces. Automatic feeding system to change spools eliminates the time-consuming task of manually winding the...
Twisted Trimmer String: Twisted design reduces noise levels and trimmer vibrations. The replacement trimmer line has an aerodynamic design that is optimized for maximized runtime and effectiveness. Lawn trimmer string delivers a clean, even cut with...
Package Included: 6 x replacement trimmer line spool ( CMZST065 & CMZST0653 ) 1x replacement spool cap,1x spring. The trimmer replacement spool Suitable String Trimmer Models: Replacement spool for CMCST900, CMESTA900,CMESTE920 & CMCST98020 series...
String Trimmer Line: Premium about 30 Foot/ 9 m in length and 0.065-inch/ 1.65 mm in diameter.String Trimmer Spool Line easily cuts through grass and weeds. Llows less drag for more efficient cuts. Pliable and flexible allowing for the line to stretch and...
Auto Feed Grass Trimmer Spool Line: High-quality ABS spool & durable polyamide nylon thread, flexible and long service life. The trimmer replacement spool utilizes centrifugal force and aerodynamics to reduce drag ,Achieve fast cutting and utilizes...
Pre-wound,ready to go: Each replacement spool comes pre-wound and may be replaced easily in a few seconds.It is very easy to assemble and remove, you can snap it into the right place and then assemble them quickly and easily just by hands, no need other...
Last update on 2026-10-16 / Affiliate links / Images from Amazon Product Advertising API
How to Choose the Best String Trimmer Spools
Comparison Tips for String Trimmer Spools
When comparing spools, prioritize durability and ease of use. Look for spools made from high-quality materials that resist fraying and breaking. If convenience is a priority, consider auto-feed or bump-feed models. For heavy-duty jobs, opt for thicker, more aggressive line shapes. Always verify compatibility with your specific trimmer model before purchasing.
Frequently Asked Questions
How do I know what size trimmer line to buy?
Check your string trimmer's manual for the recommended line diameter. Generally, lighter-duty trimmers use thinner lines (0.065-0.080 inches), while more powerful models can handle thicker lines (0.095 inches or more).
Can I use a different brand of spool than my trimmer's original?
Yes, you can often use spools from other brands as long as they are compatible with your trimmer model. Ensure the diameter and line feed mechanism match your trimmer's requirements.
What is the difference between a fixed-line head and an auto-feed head?
A fixed-line head requires you to manually thread the line through holes, while an auto-feed head automatically dispenses more line as it's needed, either by tapping the head or electronically.
How often should I replace my trimmer line spool?
You should replace the spool when the line runs out or if the line becomes excessively frayed or broken. The frequency depends on how often and how intensely you use your string trimmer.
Will a thicker trimmer line cut better?
Yes, thicker lines generally provide more cutting power and are more durable, making them better for tackling tough weeds and dense brush. However, they may also put more strain on less powerful trimmers.
What should I do if the trimmer line keeps breaking?
If the line is constantly breaking, ensure you are using the correct line diameter and type for your trimmer and the vegetation. Also, check for any damage to the trimmer head or line guides, as rough edges can cause premature breakage.
As an Amazon Associate, we earn from qualifying purchases. Product prices and availability are accurate as of the date/time indicated and are subject to change.
Before You Go!
Get the latest deals and product comparisons delivered to your inbox.
