Middle School Boys' Shinai, Size 37 Yagyu-do Ishizukuri Besaku For Actual Combat Use, SSP This shinai has been maintained with shinai oil for approximately 3 months. It may feel a bit heavy at first, but the oil will spread throughout, and it will become more manageable. Afterwards, it's less prone to splintering and lasts a very long time. It's surprisingly hand-weighted and light. Recommended for "technique-oriented" swordsmen. No longer needed due to changing grades. I hope a swordsman of the vice-captain type will use it. Thank you.