The catch ball is focused on the direction of rotation.
◇ You can check the rotation of the ball you throw. The same standard as a J ball so you can use it as a regular throwing practice.
■Material: Natural rubber
■ Uses: pitching practice
■Size: Diameter 2.7 inches (69 mm).
■ Weight: 4.9 oz (129 g).
■Country of Origin: China
Alpen Sports Depot SP_Training Sports Depot Baseball/Softball Accessories