Tourna Pressureless Tennis Ball (Pack of 60) TOURNA PRESSURLESS BALLS NEVER LOSE THEIR BOUNCE. Regular tennis balls go flat over time, even if you dont use them. These balls will have the same consistent bounce for the life of the ball. DURABLE! Not all tennis balls are created equal. The extra durable felt on the TOURNA Pressurless tennis balls lasts a long time. Ideal for tennis ball machines, tennis practice, or even playing with your pets. REGULATION SIZE AND BOUNCE. Tourna tennis balls are regulation size and bounce to regulation height. Many pressureless balls are smaller than a regular ball. Play and practice with confidence on all surfaces with Tourna Pressureless Tennis Balls. 60 HIGH QUALITY PRESSURLESS BALLS PER BAG Ideal for practice, ball throwing machines, or playing with your pet.