ITF Approved HEAD PRO Hard Tennis Balls These balls have been used for practice. *The condition may vary slightly depending on the ball, but I think the condition is good as shown in the photos. Please judge the condition from the actual product photos. I think you can use them for serve practice, ball feeding practice, etc. You can also use them for baseball toss batting, etc. HEAD PRO balls are high-quality practice balls, and in particular, they suppress air leakage by about 33%, enabling stable bounce and control for a long time. High-quality materials are also used for the felt, achieving both durability and the feeling that Japanese players prefer. "HEAD PRO" was used as the official ball at the "China Open 2014" held in Beijing, a WTA Premier tournament (women's). As they are ITF approved balls, they can of course be used in international tournaments. In Japan, they are positioned as practice balls because they are not JTA official, but their high grade has been proven. Usage: Hard court Type: Pressure ball