Cutting heads compatible with spools (set of 6+1+1) for tool room

About this product: Compatible with 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. Premium Trimmer Line: The 9.15m trimmer line can provide a wider trimming range, with a diameter of 1.65mm, the polyamide nylon line is durable and flexible. Not easy to damage, ensuring continuous operation. Fast and Clean Cuts: The automatic feed system for changing spools greatly facilitates the tedious job of manually winding spools. It uses centrifugal force and aerodynamics to reduce drag and achieve fast and clean cuts. PERFECT REPLACEMENT SPOOLS: These are perfect replacements for most original spool models, such as AF-100, AF-100-3ZP, AF-100-BKP. Inserting and removing the spool is easy and requires no tools. At the same time, damage to the equipment is avoided and the use of the thread is optimized. EXCELLENT VALUE PACK: The package includes 6 replacement trimmer spools, 1 replacement cap, and 1 replacement spring. The spool cover replaces the RC-100-P cover and the spring replaces the RC-100-P spring. Very good value for money. Note: All data is measured manually, please allow 1-3cm error. Due to differences in light and display, there will be some color difference, please refer to the actual item received.