Compatible with Ryobi One+ AC14RL3A: Replacement spools are compatible with Ryobi One+ AC14RL3A for 18V, 24V, and 40V models. Sturdy and Durable: Trimmer replacement spool line is made of high-quality ABS material, resistant to breakage, supports fast cutting, and provides extended service life. High Efficiency for Gardeners: Flexible and strong cord allows the line to stretch and absorb impact on hard surfaces; aerodynamic design helps reduce drag for more efficient cutting performance. Easy Cutting: Auto-feed system replacement spool eliminates the need for manually winding, enabling quick and easy replacement without tools. Package Includes: 12 replacement spools and 2 replacement caps. Each spool contains 11 feet of 0.065-inch diameter line; cap designed to fit spare spool.