Designed for professional play and the most demanding playing with highest skill set, the Dunlop Australian Open tennis balls - 1 dozen set features the official AO tennis tournament ball of choice for all the events and finals of the Australian open tourney. The ball is made out of premium materials and boasts the HD Core and HD Pro cloth for best possible characteristics, including excellent bounce, pressure maintenance, proper visibility and stunning shot sensation. The ball plays excellent of all possible court styles, and it preserves fantastic feel for much longer. Furthermore, it’s shipped as a dozen in three AO can each containing four balls.