Product details:

Wilson Championship High Altitude 24 Cans set the standard for high performance on the court. Featuring exclusive Duraweave felt, these tennis balls are longer lasting, more consistent, and allow less shag than its conventional competition. For players who crave consistency and durability, Wilson Championship High Altitude tennis balls are the choice of champions! Provides the best performance on court above 3,500 feet. Ideal for any court surface..