It's the PDF. You'll get the unedited version pretty much as soon as the campaign closes, and then the edited version once it's, you know, edited.

Is it a coincidence that this project funds if exactly 66.6 people back at this level? Yes, actually. Ignore that chanting behind you. Everything is fine.

You also get your name in the credits in the One Kobold in a T-Shirt backer section.