- Pro Penn Marathon is Penn’s longest lasting tennis ball.
- Featuring exclusive Encore™ Technology for a 22% longer lasting core and high tenacity LongPlay
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 ball 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.
- 4 balls per can