- Pro Penn Marathon is Penn’s longest-lasting tennis ball.
- Featuring exclusive Encore™ Technology for a 22% longer-lasting core and high tenacity LongPlay
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Pro Penn Marathon is the official ball of PTR because its durability and visibility
- Penn’s Professional tennis balls are the most technologically advanced tennis balls, providing the player with top-of-the-line core and felt technologies that allow the ball to play at its best for longer periods of time.
- 3 balls per can