Blizzard tires. 26" 108 studs per tire. They are pretty much brand new, as I used them to commute two blocks to school and back last winter. They even still have all the little stringies on them. $35
I think they are 26" x 2.25" They are 10 miles away from me right at this moment. They are factory studded, not homemade. Practically brand new. On glare ice, you can turn, stop, and accelerate. Its kinda fun accually. It says "Blizzard" on the side.