The 2027 Louisville Slugger Atlas 2.0 Junior Big Barrel is a one-piece, all-alloy USSSA bat with a balanced swing weight, a -10 drop and a 2 3/4-inch barrel. It combines a thin-walled SL Hyper Alloy barrel, a durable Hub 1-Shot Superlight End Cap, Tuned Mass Damper (TMD) vibration control, and an LS Pro Comfort Grip with a flared Pro Design Knob Taper. It is built for coach pitch or machine pitch (typically ages 5-7) and is not designed for pitches above 40-45 mph. Sizes 25-28 in, USSSA 1.15 BPF stamp, 12-month manufacturer's warranty.