The Penn Tennis Ball Cans Set is a top choice for tennis enthusiasts and professionals alike. Known for their exceptional performance, Penn tennis balls are utilized in four out of the five largest tournaments in North America. Each ball is covered with Penn's exclusive LongPlay® felt, which ensures extended wear and longevity. The Smart Optik® high visibility felt treatment makes these balls 19% more visible than standard tennis balls, enhancing gameplay in various lighting conditions. Whether you're playing on hard courts or softer clay surfaces, these tennis balls are suitable for all types of courts. The set includes three balls per can, available in extra-duty, regular-duty, and XD high altitude options to cater to different playing environments. The Penn Tennis Ball Cans Set is USTA and ITF approved, ensuring you are using a high-quality product that meets professional standards. Key Features: - America's #1 Selling Ball: Penn has been the standard in tennis balls for over 100 years. - High Visibility: Smart Optik® felt treatment for enhanced visibility. - All Courts: Suitable for both hard and soft court surfaces. - Lasting Durability: Covered with LongPlay® felt for extended use. - USTA Approved: Meets the standards set by the USTA and ITF. With a customer rating of 4.5 stars based on 317 reviews, the Penn Tennis Ball Cans Set is a reliable choice for any tennis player looking to improve their game with durable and highly visible balls. Available since October 19, 2018, this product continues to be a favorite among tennis players worldwide.