ProNine OL8 Mini Training Baseballs – 8 Inch 5 oz – Dozen

The ProNine OL8 is the bigger of ProNine’s two mini training baseballs: an 8 inch, 5 oz baseball with a raised seam, leather cover, and cushioned composite center. It is not a 9 inch regulation ball, and that is the point: a smaller target sharpens the eye for hitting and fielding work. Sold by the dozen.

Why Train With a Mini Ball
Shrink the ball and every rep asks more of the player. Hitters have to track a smaller flight and center a smaller sweet spot, and fielders have to watch the ball all the way into the glove. ProNine calls this a great training ball for hitting or fielding, and the dozen pack means the whole team drills with the same ball. ProNine builds the OL8 to the same weight as a regular size baseball, so the swing feedback transfers directly when players go back to the 9 inch ball.

Real-Ball Construction, Reduced Scale
Plenty of small training balls are foam or plastic. The OL8 is built like the real thing: leather cover for genuine grip and feel, raised seam so fingers find the same reference points they use on a game ball, and a cushioned composite center that stands up to daily use.

Where It Fits
The ProNine OL7.5 mini training baseballs are the 7.5 inch, 3.5 oz version for a smaller, lighter target. For hand-eye work with a different flavor of difficulty, the React reaction ball bounces unpredictably instead of shrinking the target. The rest of the drill wall lives in the training balls collection.

ProNine OL8 Specifications

Size: 8 inch
Sold as: Dozen
Weight: 5 oz each
Seam: Raised Seam
Cover: Leather
Center: Cushioned Composite
Great training ball for hitting or fielding
Not a 9 inch regulation size ball

Is this a regulation baseball?
No. It is an 8 inch training ball; regulation baseballs are 9 inches. Mini balls are training tools for contact and tracking drills, not game balls.
Which size should we get?
The 7.5 inch ball is the harder drill: smaller and lighter. The 8 inch ball keeps regulation weight, so throwing and hitting feel closer to the real ball. Many programs run the small ball for vision work and the 8 inch for everything else.