General description The 29242/29082 27ft 0.065' String Trimmer Dual Line is designed for use with Greenworks models 21212 and 21272. This high-quality spool features an aerodynamic shape for efficient cutting and is made from durable ABS material with a flexible polyamide nylon line. The automatic feed system simplifies the replacement process, eliminating the hassle of hand-wound spools. Technical specifications Spool model: 29242/29082 Compatible with Greenworks string trimmer models: 21212 and 21272 Spool diameter: 0.065 inch Spool length: 27 feet Material: ABS and nylon Color: black + blue + green Installation Turn off the trimmer and remove the spool cap. Replace the spool in the trimmer head. Snap the line into the slot and align it with the retainer. Cover the cap. Usage Wear safety glasses and long pants to avoid injury from spilled lines. This refill is suitable for young grass; for strong weeds, use other tools such as blades. Other information Package Contents: 6 x cutter,