State what symbol you want on your ring, and what finger you want it on. The symbol you pick will be burned onto the finger you choose as a way to keep Akatsuki members from going back to a village, so you better like what you pick.
Right thumb-Uraburos-Rei (Zero)
Right pinky
Left index
Left thumb
Left ring
Left pinky
Right index
Right middle-Odin-Byaku/Haku (White)
Right ring
Left middle