General description The 10-pack replacement spools for Ryobi thumb trimmer are designed for compatibility with the Ryobi One+ AC14RL3A cordless trimmer and various other Ryobi cordless trimmer models (18V, 24V, and 40V). Made from high-quality ABS, these spools are durable, efficient, and designed to withstand tough trimming tasks. Technical specifications Spool diameter: φ56 x 25 mm Straw rope length: 3.3 m Straw rope diameter: φ1.65 mm Material: ABS and polyamide nylon Installation Step 1: Stop the motor and lock the cover. Step 2: Reinsert the spool into the trimmer head. Step 3: Align the latch on the outside of the head with the ground. Step 4: Close the trimmer cover. Unplug the trimmer before changing, installing, or removing accessories. Usage Use only on delicate weeds. For tougher weeds, consider trimming with a razor blade. Other information Choking hazard! Keep small parts out of reach of children under 3 years of age.