Compatible with Black and Decker String Trimmer Models:GH400, GH500, GH600, GH610, GH900, GH912, BESTA510, BESTA512, BEASE620, ST6600, ST7000, ST7200, ST7700, ST7701, ST8600, ST9000, CST1000, CST1100, CST1200, CST2000, MTC220, MTE912, NST1018, NST1024, NST1118, NST1810, NST2018, NST2118, LST120, LST136, LST140, LST201, LST220, LST300, LST400, LST420, LST522, LST1018, LSTE523, LSTE525 Spool Model:AF-100, AF1003ZP, AF-100-BKP, AF-100-2.Cap Cover Model:RC-100-P, RC100P Each Replacement Spool 30ft 0.065in pre-wound line is factory wound,Compatible with Black and Decker spools by the CNC machine cutting and winding.High-quality ABS spool and durable polyamide nylon thread, flexible and long service life We are a professional seller of spool products, with high-quality OEM accessories designed specifically for efficient lawn care, helping you easily complete lawn care Quality Assurance:If you have any quality problems, please feel free to contact us, we will provide appropriate solutions within 24 hours. Compatible with Black & Decker String Trimmer Models: GH400, GH500, GH600, GH610, GH900, GH912, BESTA510, BESTA512, BEASE620, ST6600, ST7000, ST7200, ST7700, ST7701, ST8600, ST9000, CST1000, CST1100, CST1200, CST2000, MTC220, MTE912, NST1018, NST1024, NST1118, NST1810, NST2018, NST2118, LST120, LST136, LST140, LST201, LST220, LST300, LST400, LST420, LST522, LST1018, LSTE523, LSTE525 Spool Model: AF-100、AF-100-3ZP、AF-100-BKP、AF-100-2 Package includes: 6 x Line Spool, 1 x cap, 1 x Spring Quality Assurance: If you have any quality problems, please feel free to contact us, we will provide appropriate solutions within 24 hours.