DeMarini The Stadium Slowpitch Softball Bat One Composite Barrel designed for maximum stiffness SC4 Alloy Handle is the stiffest handle designed by DeMarini with the strongest alloy manufactured by DeMarini for ultimate feel Dish End Cap is a concave design that creates max stiffness at the end of the barrel while driving energy back to the sweet spot Hybrid Comfort Grip is a two-piece grip built for ultimate comfort and tack Rotation index reminds players to rotate the bat, extending it's life; 12 Month Limited Warranty and approved for play in the USSSA, NSA, ISA