Usage: Soft metal bat (usable by junior high school students and adults) Model: Yuto Sakamoto model (Giants) Length: 84cm / 6.9cm Weight: Approximately 710g Usage period: 2 years in junior high school → Purchased 10 years ago and used for only 2 years. Since then, it has been used only for practice swings at home and has been stored at home. Product condition: There are scratches and dirt, but there are no problems with use.