Used Hard Tennis Balls - 61 Balls Head Pro: 35 balls (with heart mark) Saint James: 20 balls Other: 6 balls ◎ These are practice balls with excellent hitting feel and durability. The Head Pro balls have a heart mark, making them easy to distinguish from other court balls. (KPI original model) In addition to the 55 balls in the photo, there are 6 more. These were used for 2 hours during a match on an omni court. They are 1-2 months old from the time of opening when listed. Instant purchase without comment is welcome. Please negotiate for price reduction.