Compatibility: Compatible with Ryobi One + AC14RL3A. Suitable for multiple models of Ryobi cordless trimmers: 18V, 24V, 40V. Premium Material: The replacement string 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 cutting. Allowing the line to stretch and cushion impact on hard surfaces, the aerodynamic shape allows for less drag for more efficient cuts. Auto-Feed Replacement Spool: Compatible with the Ryobi Edger and uses centrifugal force to power the trimmer line as needed. With auto-loading system, the replacement spool eases the tedious work of hand-winding spools. Package Includes: 8 packs of trimmer replacement line spools and 2 packs of spare cap covers are packed in a package for you. The spool is 11 feet in length and 0.065" in diameter and the cap fits the replacement spool. Product Description 0.065" Line Replacement Spool Compatible With Ryobi One Model for your best choice! Color: Black spool with blue line Instructions Step 1 Stop the motor and remove the cap. Step 2 Replace the spool in the cutting head. Step 3 Align the retainer with the solt outside the head. Step 4 Cover the trimmer cap. Features Suitable to several models of Ryobi One + AC14RL3A cordless trimmers, Ryobi: 18V, 24V, 40V. Plastic spool and polyamide nylon line, flexible and long application life. High quality 11 ft. / 0.065 in. string edger cuts grass and weeds with ease. Aerodynamic shape allows less drag for more efficient cuts you can work with more effectively. 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 ONLY tender weeds. Hard and strong weeds, please use blades to cut. Does not fit any other brand of trimmer. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-Minnanxin