Replacement for Stihl Part Number: Weed Eater Head replacement for part number 25-2, 4002 710 2108, 4002 710 2191. Fits Models: 25-2 Trimmer Head for Stihl FS44, FS55, FS55R, FS56 (2008 On), FS56RC, FS70, FS70R, FS74, FS76, FS80 (1996 On), FS80R, FS83, FS85, FS85R, FS87, FS90 (2005 On), FS90R, FS91, FS91R, FS94, FS94R FS100, FS100R, FS100RX, FS110, FS110R, FS120, FS120R, FS130, FS130R, FS131, FS131R, FS200 (1997 On), FS200R, FS240, FS240R, FS250, FS250R, FS260R, FS460R (2011 On) Trimmer Fits Models: Bump Feed Trimmer Head also fit for Stihl KM55, KM56, KM85, KM90, KM94, KM100, KM110, KM120, KM130, FR85, FR85T, FR106, FR108, FR130T, FR220, FR350, FR410, FR450, FR460, FR480, KA85, KA85R, KR85, FSA90R, FSA130R, FSA135, FSA135R, FS-KM Weed Eater. 25-2 Trimmer Head Type: Bump and Feed, The Nylon Line is Automatically Adjusted By Tapping The Cutting Head Against The Ground 25-2 Bump Feed Trimmer Head Includes 10mm x 1 LHF Bolt Size, Can Use .080", .095", or .105" Trimmer Line Product Description 1. [String Trimmer Rpelacement Part]: 25-2 Bump Feed Trimmer Head, Mowing Head, Cutting Head 2. [Replaces OEM Part Number]: 25-2 4002 710 2108 4002 710 2191 3. [Equipment Type]: Backpack Brushcutters, Brushcutters, Weedeater Clearing Saws, Electric Trimmers, Kombi Engines, Kombi Tools 4. [Fits The Following Stihl Models]: FS44, FS55, FS55R, FS56 (From 2008 On), FS56RC FS70, FS70R, FS80 (From 1996 On), FS80R, FS83, FS85 FS90 (From 2005 On), FS90R, FS91, FS91R, FS94, FS94R FS100, FS100RX, FS110, FS110RX, FS111R, FS111RX FS120, FS120R, FS130, FS130R, FS131, FS131R FS200 (From 1997 On), FS200R, FS240, FS240R FS250, FS250R, FS260R, FS460R (From 2011 On) FR106, FR108, KM55, KM85, KM90, KM110, KM120, KM130 FS-KM