General description This 11-Pack Edger Replacement Spools for Ryobi One + AC14RL3A includes 9 spools of edger line and 2 spool caps. Designed for Ryobi ONE+ corded trimmer models (18V, 24V, 40V), these spools feature an automatic feed mechanism that utilizes centrifugal force for easy operation, minimizing the need for manual adjustments while trimming. Made from upgraded nylon polyamide, these spools are wear-resistant and offer enhanced durability. Technical specifications Spool diameter: 1.6 mm Length per spool: 30.17 m Tensile strength: over 100 pounds Durability: 30% more durable than other brands Usage Compatible with Ryobi ONE+ corded trimmer models: 18V, 24V, 40V Automatic feed reduces manual sorting of the replacement spool Soft and flexible line increases cutting efficiency by 50% Recommended to apply powder to the spool for better automatic feed lubrication Other information Professional brand with excellent after-sales service and product quality assurance.