YWTESCH 16 Pack Weed Eater String Compatible with Black+Decker, 360ft 0.065" AF-100 Replacement Spool, Autofeed String Trimmer Line Fit for Black+Decker Weed Wacker(12 Spools,4 Spool Caps,4 Springs)

What It Is

This is a 16-pack replacement spool set for Black+Decker string trimmers, containing 12 pre-wound spools (0.065-inch diameter, 360 feet total), plus 4 spool caps and 4 springs. Designed for autofeed heads, it’s a bulk refill for routine trimming of grass and light weeds.

Fitment & Compatibility

• Model fit: Compatible with Black+Decker AF-100, GH3000, GH3100, GH4000, GH5000, GH6000, LSTE525, LST136, LST220, LST300, LST400, NST1118, NST2118, and most Black+Decker 20V/40V cordless and corded trimmers using the AF-100 autofeed system.
• Line specs: 0.065-inch diameter, round profile. Not for heavy-duty or commercial trimmers requiring thicker line (0.080+ inch).
• Check your trimmer head: Must be a bump-feed or autofeed style with a removable spool cap. If your trimmer uses a fixed-line head or a different spool design (e.g., GH900 series), these won’t fit.
• OEM vs aftermarket: Aftermarket replacement. Slightly thinner line than some OEM spools (0.065 vs 0.070 on some models), but works fine for light-duty use.

Key Things to Know

• Installation: Easy—pop off old spool cap, remove empty spool and spring, drop in new spool (line feeds through the eyelet), replace cap. No winding required.
• Line quality: Line is flexible and feeds reliably, but it’s softer than premium brands like Oregon or Husqvarna. Expect faster wear on abrasive surfaces (concrete, rocks) or thick weeds.
• Autofeed mechanism: Works best if you tap the head firmly on the ground. If line jams, check that the spring and cap are seated correctly (included springs are a bonus).
• Value: At ~$0.85 per spool, it’s a strong cost-saver over OEM spools ($3-5 each). But you get 12 spools—if you trim rarely, line may dry out over 2-3 years.

Should You Buy It

Buy this if you have a compatible Black+Decker trimmer with an AF-100 head and do light-to-medium residential trimming. It’s a cheap, no-wind convenience pack for keeping a spare spool on hand. Skip it if you need heavy-duty line for thick brush or have a different brand trimmer.