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: Spool replacement made of durable ABS material and polyamide nylon thread. Flexible, pliable, and long-lasting. Easy to Use: Snap-in installation allows quick and tool-free replacement. Precision CNC cutting and automatic bobbin winding ensure uniformity, reduce trimmer wear, and prevent line snags during use. Safety Tip: Strong centrifugal force and fast cutting action may occur during use. Wear eye protection and long pants to help prevent injury. Material: ABS, nylon Color: Black Package Contents: 6 x Spool & Line Note: Light and display settings may cause slight color variations between the image and actual item. Measurement error allowance is +/- 1-3 cm.