Optic9 Trainer Size:1 Dozen/12 Balls causing a much higher shock

causing a much higher shock load on the motor shafts

and the machine automatically adjusts the wheel speeds to spin the ball in any direction to simulate virtually any pitch

so the wheels become unbalanced

Some may show light signs of use from minimal training sessions

ProLine Hats

Optic9 Trainer Size:1 Dozen/12 Balls causing a much higher shockFoam Training No Seam Baseballs 2. 6oz 9inch Diameter 9 Inch Optic Yellow Foam Training Softball for elite hitters Train Smarter. Hit Better. Build Confidence. Precision Training Smaller 9 inch ball challenges hitters to focus more closely and refine their swing path Enhanced Hand Eye Coordination Sharpens reaction times and improves tracking of pitches Confidence Builder Training with a smaller ball makes transitioning back to a 12 inch regulation