Description 6Pcs Trimmer Replacement Spool Line, Autofeed Line String Trimmer Replacement Spool 30ft 0.065" Nylon Grass String Trimmer Line with Coil Cover and Spring for Black Decker AF-100-3ZPFeature:Nylon Mowing Thread: The spool of this mowing thread spool is made of ABS, which is strong and durable. The thread is made of nylon, with strong toughness and not easy to break. It is an indispensable tool for garden mowing.Compatible with Black Decker AF-100 Trimmer: GH400,GH500,GH600,GH900,GH912,ST6600,ST7000,ST7700,CST1200,CST2000,MTC220,MTE912,NST2018,NST1118,NST2118,LST220,LST300,LST400,LST420,LST136.Easy to Use: The automatic spare spool for the system to save you from tedious manual winding work.6+1 Package: The grass rope set contains 6 trimmer spool lines, 1 trimmer covers, 7pcs in total, enough for you to use and replace.Precautions for Use: When using this product, please wear goggles and trousers to avoid injury caused by the splashing lines. This product is only suitable for young grass. For strong weeds, use other tools.