Constructed with your performance in mind, the adidas EQT X1 BBCOR Baseball Bat is constructed of durable aluminum alloy with a barrel designed for maximum bat speed, balance, and control. -3 weight ratio. 31", 32", 33", 34" lengths. BBCOR Certified. ** Unwanted bats returned to Eastbay must not be used and must be in original packaging.** To contact a manufacturer about a warranty, please refer to our Bat Warranty Manufacturer Contact List .