The PENN Championship Extra-Duty High-Altitude Felt Tennis Balls can be used to play at high altitudes. Approved by the USTA, the top-tier tennis balls are designed to be easier to control in thin air. The pack includes 36 balls in 12 recyclable plastic cans.Used to play at high altitudes

• Approved by the USTA
• Pack includes 36 high-altitude tennis balls in 12 recyclable plastic cans
• Do not store over 120 degrees Fahrenheit
• Controlled fiber release for consistent nap
• Made from natural rubber for reduced shock
• Interlocked wool fiber for longer wear
• Designed for easier control in thin airl

Product Dimensions:

8.00 x 6.50 x 9.00 in

1.50 lbs

Shipping Dimensions:

8.50 x 7.50 x 10.00 in