The Grand Prix Extra Duty Tennis Ball series offers the ultimate in performance and durability and is ideally suited for outdoor hard court surfaces. The Grand Prix tennis ball combines a special mix of ingredients for our proprietary rubber core formula which is combined with the finest woven felt to produce a ball for outstanding performance and feel. The Grand Prix Extra Duty ball is the official ball of ITA College tennis.

The Grand Prix Extra Duty Tennis Balls contains 72 balls per case.