This Marucci CAT9 Pastime baseball bat is a high-performance, balanced bat that is perfect for advanced youth players. The bat features a 2 3/4 inch barrel diameter and a 31 inch length, making it ideal for hitting with power and precision. Constructed from durable aluminum and metal alloy, this bat is built to last. The Anti-Vibration Knob and Vibration Canceling System ensure that the bat feels smooth and comfortable during use. The multicolor design adds a touch of style to this already impressive bat.