Penn Championship High Altitude Head Tennis Balls – 24 Pack 72 Balls Yellow - USTA & ITF Approved - Official Ball of The United States Tennis Association Leagues - Natural Rubber for consistent Play

I don’t play tennis, but my two labs think these tennis balls are awesome.

I specifically ordered "high altitude" tennis balls. Usually that designation is printed on the can's label. None of the cans I received had this designation. I opened one can and as expected the non-high altitude balls were overly lively for the 7,000 foot altitude I play at.

bought these for my pups, they luv them in the pool. chase them all the time.