SincereetaliCompatibility: Compatible with Ryobi One + AC14RL3A. Suitable for multiple Ryobi cordless trimmer models: 18V, 24V, 40V. Premium Material: The replacement trimmer spool line is made of high quality ABS. Not easy to break supports fast cutting and longer service life. Convenience and High Efficiency: Flexible and strong cord for trimming. Allowing the line to stretch and cushion the impact on hard surfaces, the aerodynamic shape allows for less drag for more efficient cuts. Auto-Feed Replacement Spool: Compatible with Ryobi trimmer and uses centrifugal force to feed the trimmer line as needed. With the auto-loading system, the replacement spool makes the tedious work of hand-wound spools easier. Package Includes: 8 packs trimmer replacement line spools and 2 packs replacement cap covers are packed in one package for you. The spool is 11 feet in length and 0.065 in diameter and the cap fits the replacement spool. Features Fits multiple Ryobi One+ AC14RL3A cordless trimmer models, Ryobi: 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. Aerodynamic shape allows less drag for more efficient cuts, you can work more efficiently. Warm Notice Always wear eye protection. Unplug the tool before changing, installing or removing accessories. Choking hazard, small parts keep away from children under 3 years old. Suitable for soft weeds ONLY. Hard and strong weeds, please use blades to cut. Not suitable for any other brand of trimmer.