Manganese Steel Blue Blade Straight Ninja Sword with Geometric Black Tsuba and Lacquered Saya

The blade is forged from manganese steel and finished in a striking deep blue, running from a crisp silver polished edge up to a serrated spine that catches the light at every angle. A visible hamon line traces the length of the blade, giving it the layered visual depth of a traditionally finished sword without the uniform surface of a plain polish. The full-tang construction ensures the blade extends completely through the handle for structural integrity across the entire length.

The tsuka is built on a hardwood core wrapped in white PU samegawa (ray-skin), then overlaid with black cord in the standard diamond-pattern wrap. The result is a handle that sits firmly in both hands, with the white samegawa peeking through the wrap diamonds to create the sharp black-and-white contrast visible in the profile view.

At the guard, a black alloy tsuba with an open geometric cutout pattern creates a striking visual transition between blade and handle. The hexagonal negative spaces give the tsuba an architectural, modern quality while keeping weight centered and balanced. It pairs cleanly with the dark overall color scheme without competing with the blue blade.

The saya is lacquered hardwood in gloss black - smooth, hard-wearing, and finished to a mirror-like sheen. The saya collar is wrapped in a blue-and-white floral textile that provides the one moment of pattern and color contrast on an otherwise monochromatic scabbard. Black sageo cord is tied at the collar for traditional carry presentation. Explore our full range of Blue Ninja Sword designs or browse the Black Tsuba Ninjato collection to compare fittings and blade styles.

Overall length is 41 inches and the piece weighs 3 lbs, shipping in a 43 x 4 x 4 inch package at 4 lbs. Sword stand is not included. This piece is intended for display and collection purposes.