Penn Championship Tennis Balls, 20-pack

Open Box -
Features:

• Official Ball of USTA League Tennis

• Controlled Fiber Release

• Natural Rubber

• Deep-Elastic Seams

Tennis Ball Type: Extra Duty
Features:

• Extra Duty for use on hard courts

• Official Ball of USTA League Tennis

• The standard by which all other tennis balls are measured

• Controlled fiber release for consistent nap

• Natural rubber for consistent feel and reduced shock

• Interlocked wool fiber for longer wear

• Deep-elastic seams for reduced cracking