Penn Pro Penn Marathon Extra Duty Case Tennis Balls [Misc.]
The Pro Penn Marathon is Penn's longest lasting tennis ball. Features Encore Technology for 22% longer lasting core, high tenacity LongPlay felt for extended play, and Smart Optik felt for optimum visibility. Pro Penn Marathon balls are the choice of USPTA pros due to its durability, longevity, and visibility. Convenient case for frequent players.3 balls per can/24 cans per case (72 balls total)