Champion Sports OLBXX Official Size Practice Baseball (Dozen)The Champion Sports OLBXX baseball is constructed with a dense double cushioned cork core and protective gray wool winding, the Champion Sports Leather Baseball has a professional feel and is great for honing skills in training sessions. Raised seams with red stitching give the ball a traditional look and make it easier for players to grip and control. Designed for players of all ages, this leather baseball is available in packs of twelve to work on