The Nike M1 BBCOR Baseball Bat is a full metal bat for full speed cuts. Full Zr91 metal construction from the barrel to the handle creates full-speed explosions out of the box, out of the infield and out of the park. Precision one-piece Zr91 alloy is built for explosive contact with a stiff and highly powerful one-piece long-barrel. Aero end-cap maximizes swing speed for serious impact power. Direct connection for the player who wants the feel of metal and nothing else. Total stiffness comes from the one-piece design, for a direct power transfer every cut. M1 Specifications: BBCOR Certified. -3 weight ratio. 2 5/8" barrel.