This USSSA baseball is an official baseball of the USSSA. These baseballs have Rawlings exclusive EIT (Extra Innings Technology). EIT baseballs contain a patented thin layer of polymer just under the cover which resists the damaging effects of moisture on durability and performance and plays a key role in maintaining the ball's firmness. This USSSA baseball has a full grain leather cover for added durability, Rawlings raised seams for a better grip, a cushioned cork center and carries the official USSSA stamp.