Pro Penn Marathon Regular Duty Tennis Balls (1 Case, 12 Cans) - Premium Tennis Balls for Competitive Play, Training & Recreational Use on Hard Courts & Outdoor Courts

Product Description

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.