Reebok Vector O Adult Baseball Bat O-TECHNOLOGY reduces drag through the entire swing pattern providing increased swing speed compared to more traditional bat designs Equipped with an extended barrel profile, maximizing the hitting area. BESR Certified / 2-5/8" diameter barrel and 3 length to weight ratio Includes a shot-peened, anodized barrel surface finish for extraordinary toughness Comes installed with the Vector Texin End Cap for phenomenal durability