Transform your game with Wilson US Open Tennis Balls, the official ball of the US Open for over 40 years. Trusted by the world's best when it matters most, these tennis balls deliver unmatched consistency and elite-level performance. Crafted with premium woven felt, they ensure superior bounce and playability across gruelling three-set matches, making every serve, volley, and rally a testament to precision.\nDesigned for competitive play and approved by the USTA and ITF, this 4-pack of Extra Duty balls thrives on hard, abrasive courts. Each ball is numbered to help keep your game organised, even during intense sessions. Whether you\u2019re perfecting your serve at your local club or competing in high-stakes tournaments, elevate your performance with the gold standard in tennis balls.\nFeatures\nApproved by USTA and ITF for competitive play.\nOfficial Ball of the US Open.\nMade with premium woven felt.\nExtra Duty: Ideal performance on hard, abrasive courts.\nCan includes 4 balls.\nBa.