Compatible with：Line string trimmer replacement spool fits for Black & Decker GH3000, GH3000R, LST540, LST540B. High Quality：SF-080 With High-quality ABS spool & durable polyamide nylon thread, flexible and long service life. Use centrifugal force and aerodynamics to reduce drag and achieve fast cutting. Package Includes：3 pack 20-foot 0.08-inch diameter trimmer line and 1 cap. Good value for money, easy for replacement. Specification：SF-080 Replacement spool fits for Black & Decker GH3000 LST540 LST540B GH3000R string trimmer. 20ft 0.08 inches trimmer line replacement spool for Black and Decker original spools models SF-080 / SF-080-BKP Quality Assurance: If you have any questions about product quality, please contact us in time, we will help you solve the problem as soon as possible. SF-080 Trimmer Replacement Spools Compatible with Black and Decker GH3000 LST540 LST540B GH3000R SF-080-BKP, 20ft 0.080" Auto Feed Spool Single Line (3 trimmer line,1 replacement cap) BY - USA-SUPPLY Spool model: SF-080 / SF-080-BKP. SF-080 Spool Compatible with most Black & Decker 7.5-Amp Electric string trimmer models:GH3000、GH3000R、LST540、LST540B