PRO PENN MARATHON EXTRA-DUTY FELT TENNIS BALLS Quantity:Single Can Strung with Ashaway PowerNick 18

Strung with Ashaway PowerNick 18 for hard hitting performance and has BK’s Rad Cushion Grip for superior grip control

String: Powernick 19 Black (Prestrung) Recommended Tension: 25-29lbs Stiffness: 91 Avg

frame top and the joint for maximum control

A unique coating and organic raw material provides the ultimate touch

SuperNick ZX: Up to 40 lbs (18 kgs)

PRO PENN MARATHON EXTRA-DUTY FELT TENNIS BALLS Quantity:Single Can Strung with Ashaway PowerNick 18OFFICIAL BALL FOR TENNIS BC! Pro Penn Marathon is Penns longest lasting tennis ball featuring exclusive Encore Technology for a 22% longer lasting core and high tenacity LongPlay Felt for extended play. Pro Penn Marathon is the official ball of PTR because of its guaranteed longevity, durability and visibility. Pro Penn Marathon is available in Extra Duty Felt (for hard courts), Regular Duty Felt (for soft courts) and Extra Duty High Altitude (for