ATP Tour Extra Duty High Altitude Tennis Ball Case

The Dunlop ATP Tour Extra Duty High Altitude Tennis Ball is the official tennis ball of the ATP tour and the #1 ball used at ATP tournaments. They're made with HD Pro Cloth and an HD Pro Core for ultimate consistency and performance. Extra duty tennis balls are designed to be played on hard courts. The high altitude model is ideal for elevations 4000 feet and above. Each case contains 24 ball cans for 72 tennis balls in total.