Marucci Code -5 USSSA Baseball BatMarucci Code 5 USSSA Baseball Bat Combining tried and true technology, the Code is a great tool for a wide range of hitters. Built of AZ75 alloy, this one piece has all season durability and performance. The multi variable wall design creates an expanded sweet spot, while the AV2 knob offers less negative vibrational feedback for a better feel. One Piece Alloy Construction: clean, consistent, traditional swing feel Mid Balanced Feel: produces a medium