This Marucci CAT X baseball bat has a 2 3/4 inch barrel diameter and is made of a durable metal alloy material. It is designed for adult players in the USSSA league and has a 30 inch length and a weight of 22 oz. The bat is colored white and has some paint blemishes from previous use. This bat belongs to the baseball and softball category, specifically for adult and high school players. It is a great option for those looking for a reliable and well-designed bat that can help improve their performance on the field.