Suitable for or Black and Decker corded and cordless line trimmers. Single Line. Suitable for GL300, GL4525, GL5028, GLC1423L, GLC1823L(20), GLC1825L(20), STC1815, STC1820, STC1820CM, STC1820PC, STC1840 and GLC3630L(20).
Auto feed replacement spool.
Pre-wound for maximum reliability and uncompromised performance.