Pre-Wound: The spool line is 13.2 ft in length and 0.063 inch in diameter, factory wound for maximum reliability and consistent performance. Compatible with EasyGrassCut 23, 26, 18, 18-230, 18-260, 18-26. Premium Quality: Our spool replacement is made of durable ABS material and polyamide nylon thread. Pliable, flexible, and long-lasting. Easy to Use: Snap-in installation allows for quick and tool-free replacement. Precision CNC cutting and automatic bobbin winding ensure consistent performance, reduce wear on the trimmer, and help prevent line snags during use. Safety Tip: Due to high rotational speed and cutting action, always wear eye protection and long pants to avoid injury. Material: ABS, nylon. Color: Black. Package Contents: 6 x Spool & Line. Note: Colors may vary slightly due to lighting and monitor settings. Measurement tolerance: +/- 1-3 cm.