Fits various brush cutter models: GL280, GL301, GL425, GL430, GL545, GL555, GLC13, GLC2500, GLC2500L, GLC3000, GL4525, GL4525SB, GL5028, GL5028SB, GLC1423L, GLC1825N, GLC1823L, GLC1825L, GLC3630L, ST5530, ST4525, STC1820, STC1815, STC1820PC/EPC, STC1840/EPC, ST1823. Premium 10m/1.65mm Replacement Cable: The 10m replacement cable is factory-wrapped and ensures reliable power. Excellent. Thanks to the Auto Feed System with spare spool, no more time wasted manually winding thread. 6 spare 1.65 mm spools (AF-100), 1 spare spool cap (RC-100-P), 1 spare spring. Hassle-free guarantee: replacement or refund depending on your preference. If you have any questions or concerns, please don't hesitate to contact us.