Compatible with Ryobi One+ AC14RL3A: These replacement spools are designed for use with Ryobi One+ AC14RL3A models, including 18V, 24V, and 40V trimmers. Sturdy and Durable: Made from high-quality ABS material, the trimmer spool line is resistant to breakage, supports fast cutting, and offers extended service life. High Efficiency for Gardeners: The strong and flexible cord provides excellent impact resistance on hard surfaces, while the aerodynamic design helps reduce drag for more efficient trimming performance. Easy Cutting: Features an auto-feed system that eliminates the need for manual spool winding, allowing quick and tool-free replacement. Package Includes: 12 replacement spools and 2 replacement caps. Each spool contains 11 feet of 0.065-inch diameter line. The cap is designed to fit the spare spool securely.