DeMarini CF Zen Balanced -10 Drop 2 3/4" Baseball Bat Loaded with technology from the RCK knob to Low Pro end cap, the CF Zen (-10) bat is unrivaled on the field. The upgraded extra-long barrel with Paraflex Composite has a larger sweet spot. DeMarini's obsession with player-driven innovation has taken the DeMarini lineup to the next level with the CF Series Composite Bats. The 22% stronger Paraflex Composite barrel packs more punch and allows for a more precise weight distribution than ever so we can create balanced and endloaded versions of our composite barrel beast to better serve different players' needs. T The D-Fusion 2.0 handle reduces vibration and redirects energy back into the barrel, and the Low Pro End Cap and RCK Knob are optimized to bring out your best.