72 Tretorn X-Trainer Tennis Balls
Featuring micro cell and TRI-TECâ„¢ technology. X-TRAINER is the premium training ball in the market. They provide a superior combination of playability and durability as well as a consistent bounce/flight/speed/spin performance over a much longer playable life. Well suited also for play in colder climate conditions (as regular air-filled balls tend to have low bounce, skid and be too heavy), especially at high altitudes. It is also known for being the best choice for ball machine users. The pate