With a Fiber Reinforced Composite handle and a Swing Index of 1.5, the DeMarini Hornet eliminates vibration, giving players more confidence on off-center hits. Half & Half technology with a -12 weight drop helps players bring the bat around against the hottest of heat. Fiber Reinforced Composite handle eliminates vibration and hand sting giving more confidence on off-center hits Half + Half - Silences feedback on off-center hits, allowing players to power through the ball with control & confidence. The two-piece system flexes before impact & recoils with a burst of ball-launching energy. Proprietary materials & design create the largest, most responsive sweetspot. Flex Index 1.5 - The flex index shows a general scale of flexes available on bats. Typical all-aluminum bats flex less, giving the player a harsher feel & less performance on off-center hits. DeMarini Half & Half bats flex more (lower flex index) giving the player increased power, a better feel & more confidence on off-center hits. Positack 2 - Improved DeMarini exclusive made of moisture-absorbing composite material which delivers an even better grip and reduces vibration and hand fatigue for better feel and control.