Naked handle craftsmanship knife series The Yama blade consists of a single piece of high grade carbon steel that has been shaped and sharpened into a 80mm long blade. The Yama comes with a leather sheath for safe storage when not in use. Features Blade length: 80mm Blade material: White Steel #2 HRC: 60 - 61 Overall length: 185mm Handle material: White Steel #2 Sheath material: Leather All Kanetsune models are hand crafted in Seki city Japan by master craftsman.