The Wilson Extra Duty (4 Ball Tube) tennis balls are USTA and ITF approved for competitive play.
They are made with premium tex/tech industries felt for extra durability and are the official ball of the US Open.
•USTA and ITF approved
•Made with premium tex/tech industries felt
•Extra Duty: Optimal performance and durability on hard courts
•Ideal for longer play on hard court surfaces
•US Open official ball
Pro:Direct Tennis can offer competitive rates on worldwide delivery, as well as offering a free returns service to our customers in the UK. To check the delivery rates and times to your country click here: