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Item is returnable, but does not qualify for free returns.
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.
*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.
Have used these balls for some time. I think they are the best high altitude balls on the market. The higher cost is easily outweighed by the extra use attained.
Quality products and prompt delivery
Easily get 3+ sets out of these. The regular/championship version doesn't typically last more than about a set in moderately cool weather before the bounce is noticeably lower.
Great balls.