Enhance on-court performance and take your game to the next level with the Dunlop ATP official tennis balls. Featuring HD Pro Core, these all-court tennis balls guarantee a great blend of feel and consistency, whereas the use of HD Pro Cloth results in outstanding playability and increased visibility. They are the official balls of the ATP Tour and come in a 12-dozen pack (144 balls). Plus, the balls are used at the season-ending ATP NextGen Finals and Nitto ATP Finals.