FEATURES: 30-foot, 0.065-inch auto-feed replacement line spool for Black + Decker AF-100-3ZP trimmers. COMPATIBLE MODELS: Black + Decker GH400, GH500, GH610, GH900, GH912, ST6600, ST7000, ST7200, ST7700, ST7001, ST9000, CST1000, CST1100, CST1200, CST2000, MTC220, MST930, NST1810, NST2018, NST2118, LST120, LST136, LST140, LST201, LST220, LST300, LST400, LST420, LST1018, LSTE523, LSTE525, BESTA510, BESTA510, BESTA510, BESTA512, BESTE520. PRACTICAL: Tool-free installation, inserts and removes the trimmer for ease of use. Use centrifugal force and aerodynamics to reduce drag and achieve a fast cut. FLEXIBLE AND DURABLE MATERIALS: High-quality ABS spool and durable polyamide nylon line, flexible and long-lasting. EASY TO USE: The automatic feed system replacement spool helps simplify the tedious work of manually winding spools. Features: These replacement spools for brush cutters are suitable for several brush cutter models. Function: Compatible with the Black & Decker AF-100.