Rare Acoustic version of Sweet Child O' Mine - Slash & Myles Kennedy

Nice! I actually have the whole max sessions gig on video. Great stuff from Slash and Myles, my fave was fall to pieces. Don't know if its been removed from youtube alr or not tho.
Nice performance but one question I have in mind after watching this. what gauge of strings is Slash using to be able to do such bends??