Cat 8 2 3/4" (-8) USSSA Baseball BatThe CAT8 8 is a USSSA certified, one piece alloy bat built with AZ105 super strength aluminum alloy meaning thinner walls, higher response rate, and better durability. The precision balanced barrel includes a ring free multi variable wall design that creates an expanded sweet spot, while the patented AV2 Anti Vibration knob produces a better feel and less negative feedback.