The Penn Championship Tennis Balls Extra Duty Felt 3-Pack is a high-quality set of tennis balls designed for competitive play. Made by the reputable brand Penn and manufactured in China, these championship-grade balls are ideal for tennis enthusiasts looking for reliability and performance on the court. With a durable felt covering and extra duty construction, these balls provide excellent traction and bounce for an intense game of tennis. Perfect for players seeking a premium product to enhance their gameplay.