Fits 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, STC1815, ST4525, ST5530, STC1820PC, EPC, STC1840, EPC, ST1823 etc. Quality edger line: 9.15m edger line can achieve larger mowing range with 1.65mm diameter, nylon polyamide line is durable and flexible. It is not easy to break, which ensures work continuous. Fast and clean cutting: The replacement spool of the automatic feeding system facilitates the tedious work of hand-wound spools. It uses centrifugal force and aerodynamics to reduce drag and make fast cuts and sharp. Perfect Replacement Spool: These are a perfect replacement for most original Black & Decker such as A6481, A6485, AF-100, AF-100-3ZP, AF-100-BKP, AF-100-2. The coil 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 optimally used. Great Value Package: Package includes 8 spare trimmer spools, 2 spare caps and 2 spare springs. Coil cap replaces RC-100-P cap, spring replaces RC-100-P spring. Excellent value for money / price.