Used! Louisville Slugger Prime 919 31 21 USA Youth Baseball Bat 2 5 8 10 31 21:Gray Lined with HeatGear fabric so Size:L: 14.5" W: 9.5" H: 19" Lined with HeatGear fabric so you stay cool & dry Material wicks sweat & dries really fast Reversible design for home & away color options Low profile design increases mobility & adds comfort Sold in pairs NSA and ISA approved * 100% Composite utilizing 100% premium aerospace grade fiber * R900 Carbon Fiber is proven to endure grueling play * Dynamic Flex Ratio produces optimal handle recoil * DFR 250 provides greater stability to maximize power hitter distance * Extra long barrel construction produces the industry's largest sweetspot that controls vibration and provides unmatched feel on contact Rtx end cap design maximizes the barrel shape Balanced swing weight for the ultimate combination of speed and power and new LS Pro comfort grip for the perfect Mix of tack and cushion approved for play in little League Baseball