Mizuno’s newest two-piece composite bat is built with an aggressively wide sweet spot and a light swing weight to give you maximum performance. 2 piece construction: 2-PC Construction: Two-Piece construction used to create maximum performance and enhanced feel. Black Onyx Carbon™: Increased durability with a shorter break-in period. Dual Frequency Damper™: Mizuno's patented construction combines two different materials for vibration reduction and less flex for higher performance. Cylinder Seaming: Allows for consistent performance and durability across the barrel. Speed-Helix Grip: Designed to provide comfort and durability. One Year Warranty: Warranted from defects in materials and workmanship for a period of one year from the date of purchase. USSSA Approved: Approved for USSSA play.