Garden NINJA 0.080 inch Dual-Line Replacement Trimmer Spool Compatible with DF-080 2 Spools plus 2 Caps

What is the difference between automatic winding and manual winding? According to our multiple inspections of the product, it is known that the automatic winding of the machine minimizes the damage rate of the string trimmer. Because the position of the string trimmer line installation needs to be spaced to make it work properly, the manual winding is easy to cause the surface of the spool to be uneven. If the interval is too small, the string trimmer will be difficult to work, and the spool will be stuck. And it may cause the spool to pop out, damage the string trimmer and cause a safety accident. Compatible with Black Decker trimmer DF-080: GH1000 GH1100 GH2000 Spool model: DF-080 / DF-080-BKP Package includes: 2 x String Trimmer Spool Line 2 x Caps Product Features: String Trimmer Line Material: High quality nylon. Size: 30ft 0.080 inch. Note: When using the product, protective measures should be taken to avoid damage from spilled line.