A word to the wise. If you plan on really using your cat alot get good belts prepunched. I worked as a mechanic at ski areas for years. We tried everything in the book to save money. In the long run it cost us more money and twice the work. Snow cat belts are a different creature than conveyor belt. Two different worlds. Conveyor belt uses a heavy top cover, it will cause bolts to loosen, guarentee it. It has a high strech factor, on crusher conveyers its a simple tension adjustment. Not so on a cat, the belt streches and your timing changes, believe me i know. It will destroy your sprokets ! The cold weather factor and radious bends come into play as well. Bare in mind, if you only plan on playing 20 - 30 hrs a year it wont be a big deal. But if you really use the cat like i do, 500-1000 hrs a season you will find out the hard way. I am not going to sugar coat it, just being strait up. There is a supplier in CO, think its Mountain Services, pre punched 10 in, 2 ply, about $450. Each. Good luck