Never used product, packaging damaged during transport. Unopened product, repackaged in our warehouses, in perfect working order, warranty available. Large set: This lawnmower 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 mower with the blade adapter kit. The blade was a good fit 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,