37" MGLDN Training BatMGLDN Bat 37 37 oz Long Trainer Length exposes everything. At 37 inches and 37 ounces, the MGLDN is purpose built to challenge a hitters swing path, posture, and barrel control. The extended length increases swing radius, demanding cleaner mechanics, tighter turns, and true connection through the zone. You cant cheat this bat. If your hands cast, youll feel it. If your posture leaks, it shows. When your sequencing is right, the barrel stays through