Champion Sports Leather Baseball Set: Dozen Indoor / Outdoor Genuine Leather Official League Baseballs for Practice Training or Real Game - OLBPRO Pack of 12

Top grade cowhide leather cover provides impressive durability Double cushioned cork core for pro-level performance 5-Ply gray and white wool yarn winding allows ball to bounce back into shape after each hit Meets major league specifications, NFHS and NOCSAE approved and SEI Certified Raised seams add a classic look and give players a better grip on the ball