Dubs Official Game Ball - 12 Pack 9", 5 oz. Game Baseballs made with high quality cowhide leather, flat seams, a rubber covered cork center and 85% grey wool winding. These balls are perfect for games or for practice buckets for High School and College level teams, or game balls for youth levels. The DB100 is a staple for indoor baseball facilities using pitching machines, tee work, front toss or BP in the cages as well as turf carts and buckets for defensive and pitching work.