The Mizuno CRBN PRO is an elite-grade baseball bat crafted with a 2-piece composite design, engineered for exceptional performance on the field. 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. 2 Piece Construction: Two piece construction to create maximum performance and enhanced feel. Cylinder Seaming: Allows for consistent performance and durability across the barrel. Stiff Carbon Handle: Reduces energy loss when impacting the ball at higher ball speeds to put more energy where it belongs (the ball) and less where it doesn't (the handle and your hands). 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. BBCOR Certified: Approved for NCAA/NFHS play. CORTECH™: Generates a wider sweet spot and reduced MOI for more power, forgiveness, and a faster swing speed for better performance at the plate.