2 1/4 Inch Barrel Diameter 100 Comp Formula Uses 100% Premium Aerospace Grade Fiber For Insane Durability 14 Inch Massive Barrel Length ASA Approved Balanced Swing Weight. 2019 Miken Freak Primo Balanced ASA Slow Pitch Softball Bat: MPRIBAMiken slow pitch bats provide elite technology with out of this world cosmetics that any player can get on board with. For the 2019 season, the Freak Primo is the newest addition to the already stacked Miken slow pitch lineup. The Primo brings you one of the most durable and high performing slow pitch bats to date. This Freak Primo Balanced ASA Slow Pitch Softball Bat features a standard 2 1/4-inch barrel diameter, a 14-inch 100 COMP barrel, and a balanced feel that is preferred by players who want more control at the dish. Bat Benefits:Let's take a deep dive into the Primo barrel construction. Miken uses Tetra Core which is a breakthrough technology that optimizes performance by utilizing an inner core tube, increasing compression for unmatched responsiveness. The outer core layering provides increased flex allowing the inner core tube to maximize sweetspot and durability. Between the powerful barrel and skinny handle, the Flex 2 Power (also known as the F2P) technology optimizes both barrel loading and flex to help boost bat speeds through the hitting zone without sacrificing control. New Sensi-flex technology maximizes energy transfer from the handle to the barrel which will increase your bat speed and help decrease annoying vibration in your hands on mishits.