This Onyx Defender multi-stamp slowpitch bat is a high-performance option for advanced softball players. With a barrel diameter of 2 1/4 inches and a length of 34 inches, this carbon composite bat is both durable and balanced in swing weight. The Onyx Defender features a stable grip, spring-effect technology, and a vibration canceling system to enhance your performance on the field. It is approved for use in USSSA, NSA, and ISA leagues. The bat is designed with a colorful and eye-catching design that is sure to stand out. Get ready to hit some home runs with the Onyx Defender!