The spool is inserted into the STIHL AutoCut 2-2 mowing head, which is designed for mowing and thinning work. The 2.0mm mowing line is automatically extended by tapping the head on the ground and there is also an easy nylon loading feature.

This spool is compatible with the Mowing Head that comes standard with the STIHL FSA 56 Line Trimmer.

Note: This insert may slightly reduce battery runtime.