High quality nylon material, suitable size. Stihl AutoCut 25-2 PN: 4002 710 2108 FS85, FS90, FS100, FS100RX, KM55, KM85, KM90, KM110, KM130 The 2.4 mm x 2.5 m trimmer line is durable, high quality and less likely to break. , use For pruning, around trees, between shrubs, along borders, walls and fences. After pressing the trimmer head during operation, the cutting line will automatically adjust. Contents: 1 x Stihl AutoCut 25-2 replacement trimmer head (left handle sleeve M10 x 1 mm) When using this product, please wear safety glasses and long trousers to avoid injury from a spilled tube. Technical data: < /p> Thread mounting: M10 x 1 mm (left handle sleeve) Thread type: left-hand thread /> 2.4 mm x 2.5 m cutting line for mowing the lawn around trees, between shrubs, borders, walls and fences. During operation, the cutting line is automatically adjusted after tapping the trimmer head p>Readjusting the line during operation: To do this, move the trimmer head. The top taps the ground.