T10 Steel Full Tang Black Katana with Hamon, One Piece Luffy Saya & Demon Alloy Tsuba

The blade is forged from manganese steel hardened to HRC 62, producing a genuine hamon line that traces the temper boundary with natural variation. At 28.74 inches, the nagasa carries a chrome-polished finish and a hand-finished edge ground to a precise geometry. The full tang construction runs the entire length of the handle, ensuring structural integrity from tip to pommel.

The tsuka measures 10.62 inches and is wrapped in black cotton ito using a traditional diamond pattern over real white rayskin (samegawa). The samegawa nodes show through each opening in the wrap, providing both tactile grip texture and an authentic visual layer that synthetic alternatives cannot replicate. For collectors drawn to Black Steel Samurai Sword aesthetics, this handle construction represents a benchmark in koshirae assembly.

The silver alloy tsuba is cast in a demon theme, with layered relief carving that brings fierce detail to the guard. Gold accent elements highlight specific features of the design, creating depth against the silver base. The fitting slots cleanly into the habaki and sits flush against both tsuka and saya collar without play.

The 29.92-inch black hardwood saya is finished in matte lacquer and serves as the visual centerpiece of this build. A large illustrated panel wraps around the lower half, depicting One Piece's Luffy surrounded by stylized cloud motifs in teal, red, yellow, and white on a stark white ground - a high-contrast graphic that reads clearly against the deep matte black. The black-and-white braided sageo cord ties through the kurigata with a traditional knotted finish.

Overall length reaches 40.55 inches with a total weight of 2.8 lb, packaged in a fitted box measuring 42.9 x 3.9 x 3.5 inches. Built in full koshirae style, this piece suits display alongside other Old Samurai Sword collectibles or as a standalone One Piece-themed statement piece.