Price is $25/ball (plus $5 shipping total, no matter how many you buy) for the Balfour game used save balls.
All are MLB authenticated.

The 6 autographed final out save balls I have are:

Save #29 of 2013; save #31 of 2013, save #32 of 2013; save #35 of 2013; save #36 of 2013; save #37 of 2013