Opened December 25, 2024. Wilson Tour tennis balls, set of 16. All have sufficient air pressure for match practice. Used for match practice only on clay courts, opening all 16 at once and using them for 5 days (2 hours a day), for a total of 10 hours. - Brand: Wilson - Model: Tour - Quantity: 16 - Color: Yellow - Condition: Used Thank you for viewing. Please understand that these are used and purchase accordingly.