The Dunlop Fort is an elite tournament tennis ball, critically acclaimed and approved by the International Tennis Federation. It’s suitable for demanding practice sessions, offers exceptional velocity, aerodynamics, softer feel and appropriate bounce thanks to the HD Core technology. This pressurized ball controls really well on every type of playing surface, as well as offers a much better visibility with a fresh felt design. The ball is designed to last longer than standard tennis ball, and it is supplied as a set of twelve balls (a dozen).