The Dunlop Grand Prix Extra Duty Tennis Balls provide consistent performance for tournament-style play on hard court surfaces. Enhanced with a premium woven felt for brighter visibility and our specialized rubber core for unmatched feel, the Grand Prix tennis balls are perfectly suited for tournament play on hard courts With the Grand Prix All Surface tennis balls from Dunlop, consistent performance comes standard. Enhanced with a premium woven felt for brighter visibility and our specialized rubber core for unmatched feel, the Grand Prix All Surface tennis balls are perfectly suited for tournament play. 3 balls per can.

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