Pro Penn Marathon Extra Duty Tennis Balls - 24 Can Case Ektelon Solinco Barb Wire delivers a

Solinco Barb Wire delivers a controlled polyester tennis string with a rough surface for added spin potential

The string's unique construction of nylon multifilament core and double-braided multifilament jacket make this a premium string for professional and top level amateur players

Gamma Hi-Tech Replacement Grip (Black) Details:

The String Tension Tester lets you know when it's time to restring

Head Grommet Code: TK283A

Pro Penn Marathon Extra Duty Tennis Balls - 24 Can Case Ektelon Solinco Barb Wire delivers aPro Penn Marathon Extra Duty balls feature Penns 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