This is the DeMarini Nitro Performance Baseball Bat, which comes in at an -10 weight to length ratio. This years Nitro has the 7050+ alloy barrel. The 7050+ alloy has been a tried and true alloy for the baseball industry for many years. The Patented Capped End that works together providing the best sting stop system in baseball. The positack grip gives you the most comfortable feel allowing you to have to most control possible over the bat. The Nitro also offers a very sleek look with its cutting edge graphics and a knob that is color coordinated with the rest of the bat to give it a matching look. The Nitro is best suited for serious youth players. Approved for Little League, Babe Ruth, Dixie Youth, Pony Baseball, and AABC play.