DESCRIPTION (1) Aftermarket Trimmer Head Spool, Cover and Spring Replacement Kit Fits Stihl Trimmer Models: FS44, FS55, FS80, FS83, FS85, FS90, FS100, FS110, FS120, FS130, FS200, FS250, FS-KM, KM55, KM85, KM90, KM110, KM130 Kit Includes: (1) Trimmer Head Impact Spool (No Line) for Autocut 25-2 (1) Trimmer Head Impact Spool Top Cover (1) Trimmer Head Impact Spool Cover Spring Model numbers are for reference only. Many of the same models use different parts depending on the year or serial number. Before ordering, please refer to the service manual and verify the original part number(s).