The STIHL line spool allows you to replace the entire line spool on a mowing head quickly and easily. Depending on the version, the spool is suitable for the STIHL AutoCut 2-2 mowing head, the STIHL AutoCut C 3-2 mowing head and the STIHL FSE 31 electric brushcutter . The sturdy spool is available with round STIHL mowing lines for the FSE 31 or the STIHL round and quiet mowing line for the STIHL FSA 57 battery brushcutter, the STIHL FSE 52 electric brushcutter and the STIHL FSA 56 battery brushcutter (discontinued).