ThrowRight   is proud to offer the Replacement spring Kit 10 Pack  for the Louisville Slugger Ultimate Pitching

Machine, also known as the Blue Flame Pitching Machine and the UPM 45 Pitching machine. This Spring is also for the new

Black Flame pitching machine

10 brand new replacement Springs that come with a Set of Rubber runners for the throwing arm and 2 Bolts and nuts. One to attach

to the Throwing Arm Bracket and a shoulder bolt for the Spring Bracket.

10 Pack