Product Details: The premium composite leather provides durability, consistency, and is reliable for everything from practice to game play Hit any part of the All-American and you're guaranteed the same feel every time By minimizing and softening the valve system, it's completely undetectable during play Durable construction makes this ball good from practice time to game time and all times in between Additional Specs: The All-American is trusted by the AAU, AVCA, NAIA, AOC, and NCCAA Approved by AVCA (American Volleyball Coaches Association) for indoor play