General description Replacement Spool SF-080 for Black & Decker GH3000, LST540, LST540B, and GH3000R. This high-quality spool features a 20-foot long, 0.080 inch diameter cutting line made from durable nylon polyamide, designed for efficient mowing and reduced drag. The package includes 10 spools, providing excellent value for money and easy replacement. Technical specifications Coil model: SF-080 / SF-080-BKP Line length: 20 feet Diameter: 0.080 inch Material: ABS spool, nylon thread Color: black spool with green line Usage Wear safety glasses and long pants to avoid injury from line spillage. Unplug the tool before changing, installing, or removing any accessories. This refill is suitable for young grass; for strong weeds, use other tools such as blades.