Penn Championship High Altitude Head Tennis Balls – 2 Pack 6 Balls Yellow - USTA & ITF Approved - Official Ball of The United States Tennis Association Leagues - Natural Rubber for consistent Play

Penn Championship High Altitude Head Tennis Balls – 2 Pack 6 Balls Yellow - USTA & ITF Approved - Official Ball of The United States Tennis Association Leagues - Natural Rubber for consistent Play

• HIGH ALTITUDE - Tennis balls manufactured for surfaces over 3,000 feet or 914 meters in elevation. Deep-elastic seams for reduced cracking.
• EXTRA DUTY – Designed for hard courts with unbeatable performance, unmatched consistency and premium woven felt, all add up to a better experience for you. That's why Penn Championship Tennis Balls are the official ball of USTA leagues.
• LONGER PLAY - Play like a tennis pro with the Penn Championship High Altitude Head Tennis Balls. These balls are used by novices and seasoned professionals alike. A good bounce and sturdy but lightweight material allow for big hits and fast movement.
• TENNIS BALL FEATURES - Natural rubber construction for consistent feel and reduced shock with interlocked wool fiber for longer wear. Controlled fiber release for consistent nap.
• BRIGHT YELLOW - Design promises easy visibility on indoor or outdoor courts. The bright yellow hue is easy to spot at fast speeds and at large courts.