The Wilson US Open tennis balls provide excellent durability, playability and consistency ensured by an extra duty felt and premium high-grade wool that is woven in. They are the Official Balls of one of the most famous tennis tournaments in the world and have been used by the participants since 1978. These ITF approved balls are supplied in a box containing three 4-ball tubes (1 dozen).
- Official Ball for the US Open (since 1978)
- ITF (International Tennis Federation) approved
- Construction: High-grade wool
- Extra duty felt for longer wear on hard courts
- Superior playability and consistency