The Championship High Altitude tennis ball offers traditional performance with a durable felt. The Championship High Altitude features Wilson`s exclusive Dura-Weave felt for greater durability and increased performance. The standard felt is made for use on all surfaces for maximum versatility for players above 3500 elevation. The Regular Duty felt is made to be played on clay or indoor courts. Also available is the Wilson Championship Extra Duty tennis ball for outdoor courts and Wilson Championship Regular Duty felt tennis ball for clay or indoor courts.

The Wilson Championship High Altitude case contains 24 cans (3 balls per can- 72 balls per case).

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Note: Due to the size of this item it does not qualify for free 2nd Day Air shipping. Fee is $10.95 and will be Standard ground shipping.