Description Enjoy long-lasting comfort and high playability with the Tecnifibre Court Tennis Balls 24 Cans. Made from an extra duty woven felt material, these tennis balls increase durability for extended use. EnduroCore technology provides a consistent feel that lasts throughout the match. When you need tennis balls for tournaments or practice, reach for the Tecnifibre Court Tennis Balls 24 Cans. ITF and USTA approved.