Each of the tennis balls in the WILSONŽ US Open high-altitude 4-pack is approved for USTAŽ and ITF competitive play, so you can compete just like the pros. A high-altitude core delivers premium performance above 3000 feet.
Get your new WILSONŽ tennis balls 4-pack today from Sports Authority.
- USTAŽ and ITF approved for competitive play
- Made with premium tex/tech-industries felt
- High-altitude core delivers best performance on courts above 3000 feet