Compatibility: Compatible with Ryobi One+ AC14RL3A. Fits several models of Ryobi cordless trimmers: 18V, 24V, 40V. Premium Material: The replacement line trimmer spool line is made of high quality nylon and fiberglass. Not easy to break supports fast cutting and longer service life. Convenience and High Efficiency: Flexible and strong cord for cutting. Auto-Feed Replacement Spool: Compatible with Ryobi String Trimmer and uses centrifugal force to power the trimmer line as needed. Package Includes: 6 packs of replacement trimmer line spools are packed in a bundle for you. 11 feet in length and 0.065inch in diameter. Color: Blue line black spool Fits several models of Ryobi One + AC14RL3A, Ryobi cordless trimmers: 18V, 24V, 40V. Plastic spool and polyamide nylon line, flexible and long application time. High quality 11ft/0.065in trimmer string easily cuts grass and weeds. weeds. Aerodynamic shape allows less drag for more efficient cuts, you can work more efficiently. Warm notice Always wear eye protection. Unplug tool before changing, installing or removing accessories. Choking hazard, small parts keep children under 3 years away. Suitable for soft weeds ONLY. Hard and strong weeds, please use blades to cut. Does not fit any other brand of trimmer.