The Combat MFG SPEC-A1 BBCOR Performance Racer Alloy 31/28 bat is a high-performance baseball bat designed for adult players. Made from durable metal alloy, this bat features a 2 5/8 inch barrel diameter and a balanced swing weight for optimal performance on the field. With a length of 31 inches and a weight of 28 oz, it meets NCAA requirements and is suitable for intermediate level players seeking a competitive edge in their game. The bat is signed by Combat and the Louisville Bats, making it a reliable choice for serious baseball enthusiasts.