This is a track wheel part for a craftsman snow blower. This is pat number 302708 and is no longer made by the manufacture. this sale is for 1 drive wheel. they are bolted on the axle. These are drawn and welded to specs of the original parts. The original parts where made out of plastic and broke easy. These will not break. The wheel is 6.25 inches across 5/8 axle shaft. They are laser cut and welded. fits Sears craftsman, Dynamark, Noma and Snow chief along with others. there is 2 styles of these, this has the 5/8 shaft size make sure you check shaft size first. I have other wheels posted that I make so check my listings.