its fine grain sand paper like 1000 grit, but you gotta sand while running H2O over it to make is smooth as glass.
Sorry for the late reply, AVG 9.0 FREE crashed my hard drive (totaled it I cant recover or even use it agian)
And now my laptop (Dell 1525) wont recognize my keyboard, so when I switched my hard drive to my dual boot, I cannot choose windows, so I'm running Ubuntu 9 right now which for some REALLY strange reason lets me use the keyboard, but I cannot get into the bios or choose which OS to load :wacko.
It works, but it's not windows.