WILSON US OPEN EXTRA-DUTY FELT TENNIS BALLS Black Knight keeping power loss to an

keeping power loss to an absolute minimum to achieve smoother movement and quicker footwork

Perfect feel used by the world's top players - Federer

High Resilient Modulus Graphite

String: Powernick 19 Black (Prestrung) Recommended Tension: 25-29lbs Stiffness: 93 Avg

This bag features our new color free lining

WILSON US OPEN EXTRA-DUTY FELT TENNIS BALLS Black Knight keeping power loss to anFor the past 40+ years, every point at the US Open has been scored with a Wilson US Open tennis ball. Unparalleled consistency and performance make it the gold standard in tennis, trusted by the best in the game when it's all on the line. Crafted with premium woven felt, this ball is available in Extra Duty, Regular Duty and High Altitude variations.