Item Type: Chainsaw Flywheel Material: Aluminium Alloy Color: As Picture Shown Application: for STIHL 066, ms660, ms650 Chainsaw Product Size: Approx.11.5x11.5x4.5cm/4.5x4.5x1.8in Gross Weight: Approx.490g/17.3oz OEM Number: 1122 400 12171Aluminium Material: Made of high quality aluminium alloy material with high strength and wear resistance, having good performance for long service life. 2Fine Workmanship: With exquisite workmanship and high accuracy, which is safe and environmentally friendly, so you can use it with confidence. 3Application Scope: Ideal replacement for the old or damaged original part, suitable for STIHL 066 Ms660 Ms650 MS 650 660 chiansaw to repair. 4Close Fitting: A perfect accessories, can effectively prolong the service life of the machine, stable performance, can perfectly match your machine. 5Warm Prompt: The replacement OEM number is 1122 400 1217, please check your model carefully before placing order to avoid inconvenience. 1 x Flywheel