Black and decker 10 metre nylon trimmer line on a spool for all black and decker grass trimmers with the reflex intelligent cutting system to fit models gl280 gl301 glc13 glc2500 glc3000 glc3630l gk425 gl430 gl530 gl540 gl544 gl545 gl555 gl560 gl570 gl580 gl4525 gl5028 glc1423l glc1825l and glc1825n