SF-080 Replacement spool fits for Black & Decker GH3000 LST540 LST540B GH3000R string trimmer replacement spool for Black and Decker original spools models SF-080 / SF-080-BKP,also know as SF 080 / SF-080 AFS / SF 080 BKP. 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. Line string trimmer replacement spool fits for Black & Decker GH3000, GH3000R, LST540, LST540B. Size: Line length 20ft, diameter 0.080 inch Package includes: 12 x String Trimmer Spool.