General description The Replacement Spool for Trimmer includes 4 pieces of high-quality nylon spools designed for BLACK & DECKER trimmers. This auto feed system spare spool utilizes centrifugal force to transport the cutting line as needed, significantly reducing the hassle of manually winding the spool. The spool line is engineered for high efficiency, featuring an aerodynamic shape that enhances cutting performance and minimizes drag for effective weed control. Technical specifications Length: 9.2m Wire Diameter: 1.65mm Compatibility and accessories Compatible with BLACK & DECKER models: AF-100, AF-100-3ZP, AF-100-BKP Fits additional BLACK & DECKER models: GH400, GH500, GH600, GH610, GH900, GH912, ST6600, ST7000, ST7200, ST7700, ST7701, ST8600, ST9000, CST1000, CST10, NST2118, LST120, LST136, LST140, LST201, LST220, LST300, LST400, LST420, LST522, LST1018, LSTE523, LSTE525, BESTA510, BESTA512 Includes 1 RC-100-P spool cover Usage The flexible and strong nylon spool is designed to