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 For information about Christmas Delivery cut off dates please visit the delivery section of the FAQs page: