The US Open Tennis Balls 3-Ball Can is designed for high-performance play, ideal for all court surfaces. Approved by the USTA and ITF, these premium balls are known for their durability and consistent bounce, making them the official ball of the US Open. Encased in a pressurized can to maintain optimal pressure, these balls provide excellent responsiveness and control, catering to both professional and recreational players looking for a reliable, long-lasting option for intense matches or practice sessions.