Used Demo DeMarini CF Zen UFX 19 31 21 USA Baseball Bat 2 5 8" Black Blue 12.5" Our Pure Vent System amplifies airflow Medium:Navy White Red Our Pure Vent System amplifies airflow throughout padded areas while the Motion 360 mesh incorporates variable stretch materials in critical areas allowing for unrestricted shoulder and torso movement has cleat marks (see pics) no defectsDeMarini has successfully created their lightest swinging bat yet Has " Not for Retail Sale No Warranty" Written on it Para flex+ composite construction for more precise weight distribution 3Fusion end cap reduces weight at the end of the bat for a more balanced swing X lite knob is ergonomically designed to perfectly fit players' hands