Rawlings YB5R13 5150 Youth Minus 13, 2 1/4 Barrel Bat Shaped from the radically responsive, aerospace-grade Rawlings 5150 Alloy, this one-piece construction equips hitters with expanded balance, transcending speed and magnified power 5150 alloy is Rawlings most durable and highest performing alloy Designed to amplify bat velocity, Rawlings unique balanced construction enables batters to drive through the zone faster in the clutch Precision-Optimized Performance just got more precise. Extending the sweet spot size by 25% will boost an average and increase power numbers Composite end cap with 36% more carbon fibers that lowers MOI and increases swing speed