Precision Cutting Diameter: Each trimmer spool has a 2mm diameter, perfect for your trimmer's string holes. The thick, flexible nylon line easily cuts through thick grass and weeds, making every cut count. Each spool has 3.4m of line, allowing for a larger trimming area. Durable Construction: Made from Made from ABS plastic and nylon materials, these replacement lines feature tough ABS cores that withstand the rigors of outdoor use. The flexible nylon strings are built to last, ensuring consistent performance throughout the season and beyond. Universal Compatibility: The trimmer line is specifically designed for Ryobi One Plus+ trimmers, including 18V, 24V, 40V, RY40204, RY40220, and ZRP2080 trimmer models. Replaces Part Number: AC80RL3 Effortless Feed Mechanism: Our spools incorporate centrifugal force and an aerodynamic design for automatic line feeding, minimizing resistance and facilitating fast trimming without added strain on your arms. Convenient Packaging: Each pack contains 9