The Stihl AutoCut 25-2 Mowing Head is a versatile cutting head that is suitable for small to mid-sized Stihl petrol-powered trimmers and brushcutters, as well as the FSA90 cordless model. Its unique features make it perfect for mowing and thinning tasks, delivering outstanding results every time. Key Features: Double line design for mowing and thinning tasks Auto-extend function for increased efficiency Nylon line automatically readjusts when tapped against the ground Comes pre-loaded with 2.4mm line for immediate use Solidly made for long-lasting durability Easy-to-change line for effortless maintenance