You are purchasing a good used front FOX shock  from a recently parted out (3/25/2016)  1998 Arctic Cat ZR 500 with 2200 miles.  This snowmobile was in super nice cosmetic condition and ran just as well until one of the cylinders lost about half of its compression and a drive shaft also snapping.  My son babied this sled for the past 5 years and put few miles on it.  Unfortunately, Minnesota has been lacking snow the past two seasons and he will turn 16 in September and would rather save up for a Jeep.  This snowmobile was stored in a garage and kept indoors at least for the past 5 years, and based on the condition of everything, most likely most of its life, so the parts have very little if any rust. I also was religious about changing the chain case oil, waxing and washing after rides, and keeping the moving parts lubricated.  Remember, however, that this sled is used and has wear to its parts from being 18 years old, but only 2200+ miles.  Please ask questions before purchasing.