Suitable for Black Decker: Suitable for most edge models: GL280, GL301, GL425, GL430, GL545 GLC2500, GLC2500L, GLC3000, GL4525, GL.4525S.B, GL5028, GL5028SB, GLC1423L, GLC1825L, GLC3625L, STC1820, STC1815, ST4525, ST5530, STC1820PC, EPC, STC1840, EPC, ST1823 etc. Quality border wire: 9.15 m border cutting thread can allow a larger mowing range with a diameter of 1.65 mm, The polyamide nylon wire is durable and flexible. It is not easy to break, which ensures continuous work. Quick and Net cut: The replacement coil of the automatic power supply facilitates the tedious work of the manual winding coils. It uses centrifugal force and aerodynamics to reduce drag and fast and clear cuts. Perfect replacement coil: they perfectly replace most black & decker coil models 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, the damage to the device are avoided and the thread is used optimally. High value set: The packet includes 6 spare grass cutters, 1 spare caps and 1 spare springs. The coil cap replaces the RC-100-P cap, the spring replaces the RC-100-P spring. Excellent value for money. Material: Nylon Thread length: 9.14m Thread diameter: 1.65 mm Dimension of the coil: 6,3cmx2.7cm The package includes: 6 x Border cutter reel 1 x cap 1 x Spring Precautions 1, this product is only suitable for young herbs. For strong weeds, use other tools, such as a secateur. 2, always wear glasses. Before replacing, installing or removing accessories, please disconnect the tool to prevent the splashing thread from hurting people. 3, is not suitable for other brands of trimmers.