March 7th, 2010 
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Features:
- Includes 16 3-ball cans – a total of 48 Penn Championship tennis balls.
- The official ball USTA League Tennis.
- Extra-duty felt.
- Recommended play surfaces: hard court, outdoor, asphalt, concrete.
- Made in USA.
Product Description
This USTA and ITF approved ball is also the Official Ball of USA League Tennis….
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I run a small resort with a basic court. raquets and balls are provided. This grouping of balls is a good value.
Rating: 4 / 5