1. What You Can Get: 9 x trimmer replacement spools, 3 x cover, enough quantity for using or replacing, working as practical tools. 2. Compatible with model: F016800569/F016800385 spool line, compatible with ART 23SL and ART 26SL, please check the model carefully before purchasing to ensure the fitting you need. 3. Work more efficiently: Replacement lines are easy to install and flexible to use, which can use centrifugal force and aerodynamics to ease the tedious work of hand-wound spools, allowing you to work more efficiently. 4. Warm tip: Strong centrifugal force and cutting during use, please wear eye protection and long pants to avoid unnecessary injuries. 5. Reliable Material: High quality ABS and nylon spool, flexible and long service life. Material: ABS, nylon Color: Black Package Contents: 9 * Spool 3 * Spool Cover Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in a little different