America's #1 selling ball! The can is pressurized and contains three new, Penn, extra-duty felt tennis balls. They're ideal for hard court, outdoor, asphalt and concrete play surfaces.

Perfect for serious and casual tennis players alike, this 72-pack set of Penn X-tra Duty tennis balls will get your through a season of training, casual matches, and competitive rivalries on hard court surfaces. The natural rubber construction offers a consistent feel and reduced shock while the interlocked wool cover fiber provides longer wear. The balls are packed in 24 cans with three balls per can. Approved by the USTA and ITF.