Penn Pro Marathon Extra-Duty Tennis Balls 3 Ball Can (4-Pack)

Penns longest lasting tennis ball the Pro Penn Marathon is a great choice for the serious tennis player seeking a premium tennis ball. This ball features Penns Encore technology for top notch longevity in the core and LongPlay felt for better durability. Optik felt keeps visibility at a maximum. These particular Pro Penn Marathon balls are made of extra-duty felt making them perfect for hard court play.