What is a cork and rubber center baseball?
A. The ball consists of an enlarged cork sphere held together by a glue binder that is rubberized. ProNines cork/rubber center balls test out as the most durable on the market. This results in its superior durability and the sound off the bat is similar to cushioned cork centers up the age group of about 15-yr olds. High School and college players with greater bat speeds will hear a noticeable sound difference between this center and the cushioned cork center.
