The DeMarini Uprising Youth Little League Baseball Bat UPL15 -13 11.5 BPF is perfect for young baseball players. With a barrel diameter of 2 1/4 inches, this aluminum bat is lightweight at 16 ounces and 30.5 inches in length. It is ideal for both practice and game play. The bat is designed for youth baseball and is not signed. The DeMarini Uprising model is a popular choice among players and is not a vintage item. It is suitable for use in Baseball-Youth, Bats, Baseball & Softball, Team Sports, and Sporting Goods categories.