Thank you for waiting. 89 centimeters This is a Hi-Gold knock bat. This product was also featured on Tokusan TV, and it's a product that can't be compared to others. I actually used it, and although I didn't feel a difference in distance, the players receiving the ball commented that "the spin is similar to an actual hit." The hitter feels the head is heavy, but I think it prioritizes the players. If you're interested, please take a look. ☺️