Miyabun Japanese Aogami (Aoko) Deba Knife, 6.5-Inch (165mm) Knife Type: Japanese Deba Knife / Made in Japan Steel Type: Yasuki Aogami (Blue Steel) Blade: Single-Edged / Blade length: 6.5 inch (165mm) Total length: 12.4 inch (315mm) / Weight: 0.55 pounds (250g) BOLSTER: Water Buffalo Horn / Handle Material: Magnolia