Constructed using an extra duty felt for longer wear and premium high-grade wool that is woven into it, which results in excellent durability as well as superb playability and consistency. The balls provide optimal performance and durability on hard courts.

Specs

• Official Ball for the US Open (since 1978)
• ITF (International Tennis Federation) approved
• Construction: High-grade wool

• Premium Tex/Tech Industries felt
• Extra Duty for optimal performance and durability on hard courts
• Superior playability and consistency
• 6 Dozen (72 Balls)