●[Fitment]Trimmer spool compatible with Kobalt KST 120X string trimmer, compatible with Kobalt 40V Cordless String Trimmer. ●[Easy to Use]Easy to use, comes with pre-wound, no need for you to waste time re-winding your trimmer line. ●[High Quality]0.065 20 Ft Rounded Line. Made of high quality ABS spool& durable polyamide nylon thread,which provide a flexible and durable life. ●[Easy Installation]Simply pop the trimmer cap off, then thread the ends of the trimmer spool,just install and replace. ●[Warm Note] Please check the compatibility before purchase it! If you have any questions, please contact us for help.