Compatible Models: Spool model F016800569/F016800385, compatible with EasyGrassCut 23, EasyGrassCut 26, EasyGrassCut 18, 18-230, 18-260, and 18-26. ABS spool with durable polyamide nylon line, flexible design. Aerodynamic shape reduces drag for more efficient cutting performance. Features an auto-feed system that simplifies replacement and eliminates the need for hand-winding. Spool line diameter: 0.065 inch, designed to fit the line hole precisely. Line length: 16 feet, providing extended mowing range. Easy to install: Remove the cap cover; automatic winding enables quick spool changes, saving time and effort. Usage precautions: Always wear safety goggles and long pants when operating to protect against flying debris. This replacement spool is intended for use on young grass only; for thick or tough weeds, use a more suitable tool. Installation steps: 1. Turn off the trimmer and remove the spool cap. 2. Insert the new spool. 3. Guide the line into the slot and align with the retainer. 4. Reattach the cap securely. Color: Black. Material: ABS and nylon. Package includes: 8 x Trimmer replacement spools. No other items included. Note: Lighting and display settings may cause slight color variations between the image and the actual product. Measurement tolerance: +/- 1-3 cm.