BLACK+DECKER DF-065-BKP Dual Line AFS Replacement Spool Bulk Auto Feed System replacement spool eliminates time spent hand-winding string trimmers 30-Feet replacement line is factory wound for a superior feed Utilizes centrifugal force for maximum performance Includes a .065-Inch diameter line; weighs 9-3/5-Ounce Compatible with the Black & Decker no.GH700 string trimmer Auto Feed System replacement spool eliminates time spent hand-winding string trimmers 30-Feet replacement line is factory wound for a superior feed Utilizes centrifugal force for maximum performance Includes a .065-Inch diameter line; weighs 9-3/5-Ounce Compatible with the BLACK+DECKER no.GH700 string trimmer