Wilson US Open Tennis Balls are designed for outstanding performance, consistency, and long-lasting durability. Made with premium wool and covered in extra-duty Milliken felt, they provide excellent visibility and enhanced wear on all court surfaces. Officially approved by both the USTA and ITF, these balls are suitable for competitive and recreational play alike. Specifications: • Extra-duty Milliken felt for increased durability • High visibility for improved play • USTA and ITF approved for tournament play • Pack includes 6 cans of 4 balls (24 balls total) Brand: Wilson Pack Quantity: 24 Tennis Balls