Thank you for viewing. This is an offering for a Masamune 24th generation Tsunahiro-made usuba knife, 240mm, single-edged, right-handed. The handle is a buffalo horn ferrule and shinogi-style ho wood. There is a slight chip in the ferrule due to aging, but it does not affect use at all. The steel type is unknown, but based on sharpening, it is likely shirogami (white paper steel). It takes a very good edge. Specifications (approximate values) Blade length: Approximately 240mm (to the machi), approximately 225mm to the heel Blade width: Approximately 50mm Blade thickness: Approximately 4mm Overall length: Approximately 392mm Weight: Approximately 239g