Pro Penn Marathon Extra-Duty balls feature Penn’s exclusive Encore Technology for a 22% longer lasting core. Ideal for hard courts, this ball also incorporates LongPlay Felt for extended play and features SMART OPTIK felt for enhanced visibility over standard tennis balls. A best seller for many years, Pro Penn Marathon Extra-Duty tennis balls are technologically advanced and offer outstanding performance and durability.
Pro Penn Marathon Extra Duty Tennis Balls Details:
- 3 Balls per Can
- Courts: Hard
- Felt: Extra Duty
- Colour: Yellow
- United States Tennis Association Approved
- International Tennis Federation Approved