TIGREZY - High quality products and satisfactory customer service at a reasonable price High quality material: The 3.4m long replacement line is factory wound, high quality line provides fast cutting and longer service life, high quality ABS spool, the line is made of polyamide nylon, flexible and durable, not easy to break, ensure continuous work. Compatibility: Compatible with Ryobi One + AC14RL3A. For Ryobi String Trimmer Models: 18V, 24V, 40V Electric Trimmers. Comfortable and High Efficiency ：The spool design reduces drag, uses centrifugal force and aerodynamics to reduce drag and enable fast cutting, more efficient cutting, helping you reach hard-to-reach edges of your garden lawn. Allowing the line to stretch and absorb impact on hard surfaces, the aerodynamic shape provides less resistance for more efficient cuts. Easy to use and ranger ：The replacement spool of the automatic feeding system makes the tedious work of manually winding the spool easier. It uses centrifugal force