.105 Inch Square Commercial String Trimmer Line in Spool, Weed Eater String with Line Cutter-977Ft Fits Most String Trimmer(Red, 5LB Square 0.105")

What It Is

This is a 0.105-inch square commercial-grade trimmer line, pre-wound onto a spool with 977 feet total, designed for heavy-duty trimming on most gas and electric string trimmers. It includes a built-in line cutter for quick length adjustments.

Fitment & Compatibility

Before buying, confirm your trimmer head accepts pre-wound spools (not all do; some require bulk line only). The 0.105-inch diameter fits most standard trimmers, but check your manual or existing line diameter—0.095” or 0.080” trimmers may jam or fail to feed. The spool is universal, but head shape and retention tabs vary; measure your spool’s width and center hole diameter (typically 1–1.5” wide, 0.5–0.75” hole). This is aftermarket, not OEM-specific, so it won’t match brand-locked heads (e.g., some Stihl or Echo models).

Key Things to Know

• Quality: Square profile cuts through thick grass, briars, and light brush better than round line, but it’s stiffer—may not feed smoothly on bump-feed heads with weak springs.
• Installation: Pre-wound spool is plug-and-play; just swap the old spool. If your head requires manual winding, you’ll need to re-spool (line is included, but not pre-wound for that use).
• Gotchas: The 5-lb weight is heavy; spool may be too large for compact trimmer heads (check clearance). Line cutter is a plastic add-on, not a permanent upgrade.
• Line length: 977 ft is massive—ideal for commercial use or multiple trimmers; overkill for a single homeowner season.

Should You Buy It

Buy this if you have a standard trimmer (e.g., Ryobi, Husqvarna, Troy-Bilt) that accepts pre-wound spools and you need heavy-duty line for thick weeds or large areas. Skip it if your trimmer uses a proprietary spool or if you only do light, occasional trimming—a smaller 0.080” line will feed easier and waste less.