Get the equipment you need to play your best on a variety of court surfaces with the Wilson Championship Tennis Balls. Including three tennis balls, the Championship provides durability and performance whether you are playing a practice round or going up strong in a competitive match. Get the superior performance and durability you have been looking for with the Wilson Championship Tennis Balls in Extra Duty and Regular Duty. FEATURES: Regular Duty
- Excellent performance and durability on clay/indoor courts Extra Duty
- Built for longer playing performance on hard court surfaces High Altitude
- For all court surfaces over 3500 ft.