About this tool
Heavyweight model for power hitters: "MM Junior Heavy"
We have developed the "MM Junior Heavy," a heavyweight model designed for power hitters. This is a youth urethane bat that utilizes the same FRP + urethane construction as our MM23 series of adult rubber-ball bats. By combining high-density hard and soft layers in the urethane hitting section, the bat suppresses ball deformation upon impact, delivering high-rebound performance.
Furthermore, the thickness of the urethane in the hitting section has been increased to 18mm, an update from previous models. This increased thickness enhances repulsion, allowing players to feel the distance on the ball even when hitting off-center.
