The Penn Tour High Altitude Extra-Duty tennis balls are a top choice for playing at altitudes of 3500 ft. and higher. With LongPlay® felt, they'll be durable and dependable for extended wear. Smart Optik® felt makes the balls 19% more visible than standard tennis balls so you can see them better on every hit.
- USTA and ITF approved.
- Each can contains 3 tennis balls.
- Recommended for play on hard court, asphalt, outdoor or concrete surfaces.
*Note: Penn Tour High Altitude Extra Duty tennis balls are a replacement to Penn ATP World Tour High Altitude Extra Duty balls, featuring a new name and updated packaging.
Important Note: These tennis balls are designed for use in high altitude locations over 3,000 feet. They will not work as well and seem dead or flat in other locations.
