Get ready to up your tennis game with Dunlop Grand Prix Extra Duty tennis balls! Specifically designed for hard court play, these balls feature special rubber core formula with fourteen secret ingredients that deliver consistent bounce and excellent feel. The MaxGlo felt is 14% brighter than regular tennis balls, making them easier to see so you can react quicker and prepare your shots better. The extra duty construction means these balls can handle the abrasion of hard courts without wearing out quickly. Each can contains three premium quality balls that maintain their pressure and performance through many sets. Whether you're playing competitively or just hitting with friends, these balls provide the perfect combination of durability and playability. The vibrant yellow color stands out against any court surface, and the consistent bounce means no surprises during your matches. Dunlop's reputation for quality shines through in every aspect of these balls - from the tight-seam construction to the high-quality felt that holds up match after match. Perfect for club players, league matches, or anyone who takes their tennis seriously but doesn't want to replace balls constantly. The familiar pop when you open the can signals you're about to play with some of the best tennis balls available. Your game deserves the quality and performance that Dunlop delivers with these outstanding tennis balls!