The Babolat Championship Tennis Ball Case is the best option for high level players. This pressurized ball is for players needing an extra durable ball that is very playable for any surface. This ball is ITF approved perfect for training, dual matches or tournament play. Note: There are 3 balls per can and 24 cans per case. Improve your game with the Babolat Championship Tennis Ball Case. Featuring a pressurized design, these balls are perfect for high-level players who need durability and playability on any surface. Plus, they're ITF-approved for training, dual matches, and tournament play. With 3 balls per can and 24 cans per case, you'll have plenty on hand for even the most intensive training sessions and competitions.