Pro Penn Marathon Regular Duty Tennis Balls Case | 24 Cans | 72 Balls

Pro Penn Marathon is Penn's longest-lasting tennis ball, featuring exclusive Encore℠Technology for a 22% longer-lasting core and high-tenacity LongPlay Felt for extended play. Pro Penn Marathon is the official ball of PTR because of its guaranteed longevity, durability, and visibility. Pro Penn Marathon is available in Extra-Duty Felt (for hard courts), Regular-Duty Felt (for soft courts), and Extra-Duty High Altitude (for higher altitudes). Penn’s Professional tennis balls are the most technologically advanced tennis balls, providing players with top-of-the-line core and felt technologies that allow the ball to play at its best for longer periods of time.

• SPN00138