【Brush Cutter Kit Size】5mm L-wrench size: 128mm/5.04in, T-wrench size: 140mm/5.51in, driver plate diameter: 80mm/3.15in, Collar Nut Diameter: 25mm/0.98in, Thrust Washer Diameter: 42mm/1.65in. 【Suitable Replacement】 This blade attachment kit is designed to attach many types of blades to the weeder, edger, brush cutter, grass trimmer and lawn mower. 【Easy to install】Maintenance kit replacement brushcutter adapter. Adapter Mount Washer Plate Service Kit for Stihl Brush Cutter. 【Good Compatibility】Helps install Stihl trimmer. Fits the following models: Stihl FS40C FS55R FS56R FS36 FS80 FS81 FS85 FS90 FS10 FS110 FS120 FS130 FS130R FS200 FS200R FS250 Sarlo SS-18 Specification: Material: Plastic + Steel > Riding plate diameter: 80 mm, Collar nut diameter: 25 mm, Thrust washer diameter: 42 mm Compatible with: for stihl echo ryobi brushcutter thermal Package includes:1 x Thrust Washer,1 x Rider Plate,1 x Thrust Plate,1 x Collar Nut,1 x T Wrench