Trimmer Head - TOOGOO(R) #4002-710-2191 Trimmer Head For Stihl FS40 FS88 FS 90R FS100 FS100R FS106 FS108 Black 100% brand new,high quality. Type:Trimmer Head. Color: Black A split design, to reduce tangling and line welding. Speed is fast, up to 10000rpm (max). Durable , stable, fast. Tap Head for quick and easy loading. Arbor sizes include 10mm x 1.0 LHF; Speed: 10,000rpm; Quantity: 1 pc. UsesSTIHL 080" ,STIHL 095" ,STIHL 105"; Unfit for Stihl fs56 because the nut is too small. Part Number: 4002 710 2168 / 4002-710-2191 25-2 Autocut Package Included: 1 x Trimmer Head