Penn Championship Extra Duty Tennis Ball. Yellow - 12 pack

The Penn® Championship Extra Duty Tennis Balls are the official ball of USTA® League Tennis. For use on hard tennis courts . the regular duty balls are built with natural rubber for reliable feel and reduced shock. The interlocked wool fiber composition increases durability for longer wear . while deep-elastic seams offer reduced cracking. This 12 can multi-pack provides the gear you need to be a champion from one season to the next.

• 12-pack (36 tennis balls)
• Extra Duty tennis balls for use on hard courts
• Official ball of USTA® League Tennis and the standard by which all other tennis balls are made
• Natural rubber construction for consistent feel and reduced shock
• Interlocked wool fiber for longer wear
• Controlled fiber release for consistent nap
• Deep-elastic seams for reduced cracking
• Model: 521012