Introducing the Mizuno Cage Bat – designed for relentless training and batting cage sessions. One-Piece Construction: For maximum mobility and comfort. Anti-Shock Construction™: Reduces vibrations felt in the hands for a more comfortable swing. Cylinder Seaming: Allows for consistent performance and durability across the barrel. Optimized End Cap: Great sound on batted balls, while also positively affecting the bat's sweet spot to give you more pop. Speed-Helix Grip: Designed to provide comfort and durability. One Year Warranty: Warranted from defects in materials and workmanship for a period of one year from the date of purchase.