Suitable for Black Decker: Fits most trimmer models: GL280, GL301, GL425, GL430, GL545, GL555, GLC13, GLC2500, GLC2500L, GLC3000, GL4525, GL.4525S.B, GL5028, GL5028SB, GLC1423L, GLC1825L, GLC3625L, STC1820, STPC, STC185530, ST45 STC1840, EPC, ST1823 etc. Quality edge trimmer line: 9.15m edge trimmer thread can allow larger mowing range with 1.65mm diameter, nylon polyamide yarn is durable and flexible. It is not easy to break, which ensures continuous work. Quick and clean cut: The replacement spool of the automatic feeding system makes the tedious work of manual winding spools easier. It uses centrifugal force and aerodynamics to reduce drag and achieve fast, clean cuts. Perfect replacement spool: Perfect replacement for most original Black & Decker spool models such as A6481, A6485, AF-100, AF-100-3ZP, AF-100-BKP, AF-100-2. The spool can be inserted and removed without tools, and the operation is simple. At the same time, damage to the device is avoided and the thread is used optimally. Great value set: the package includes 6 spare trimmer spools, 1 spare caps and 1 spare springs. Spool cap replaces RC-100-P cap, spring replaces RC-100-P spring. Excellent value for money. See more details.