The Official Ball of the US Open, Wilson US Open Extra Duty Balls are made with premium quality industrial felt and designed for optimal performance and durability on hard courts. Wilson has been the 'Official Ball of the US Open' since 1979 and continues to produce one of the most recognized and relied upon tennis balls in the world. Known for quality, durability and performance, Wilson US Open Extra Duty Tennis Balls are approved by the USTA and ITF.

Wilson US Open Extra Duty Tennis Balls Details:

• 3 Balls per Can
• Courts: Hard
• Felt: Extra Duty
• Features the Eco Overcap - a hole in the cap to reduce plastic
• United States Tennis Association Approved
  
• International Tennis Federation Approved
• PLEASE NOTE - Cases of tennis balls do not qualify for free shipping
• Product Code: WRT106200