The Pro Penn Marathon is Penn’s longest lasting tennis ball. Features Encore Technology for 22% longer lasting core high tenacity Long Play 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.
- Encore Technology
- High Tenacity LongPlay Felt
- Official Ball of PTR
- Model Number: 522102-WEBSALES