Large Set: This trimmer parts set contains 1 x thrust washer / 1 x rider plate / 1 x collar nut. Thrust washer: 4130-713-1600; Rider plate: 4126-713-3100; Collar nut: 4126-642-7600.Easy to Install: It is easy to replace the line spool on the trimmer with the blade adapter kit. The blade fitted well and there was very little vibration. In addition, you can use it via Youtube videos.Premium Quality: The blade adapter kit is made of high-quality stainless steel, which makes it strong and durable. Due to the superior quality, this kit will not rust or break easily, allowing you to use it for a long time.Good Compatibility: Suitable for Stihl FS 40C, FS55, FS55R, FS56, FS56R, FS56RC, FS70, FS70R, FS80, FS83, FS85, FS87, FS90, FS90R, FS94, FS94R, FS100, FS100R, FS110, FS110R, FS110X, FS110RX, FS120, FS130, FS130R, FS200, FS240, FS250, FS250R, FS260, FS460, FS460C, FR85, FR85T, FR130T, FR220, FR350, FR450, FR480, FR480C, FS-KM, FSA90, FSA.90R, FSE65 Good Compatibility: Helps install the