Red Rayskin Wrapped Saya 赤鮫皮 Option:Genuine Rayskin smelted from satetsu (砂鉄) and

smelted from satetsu (砂鉄) and repeatedly folded (orikaeshi-tanren / 折り返し鍛錬)

Shinken (真剣) | Vajra Katana: TangGu (湯谷) Maru Blade (丸造) + TangGu (湯谷) Kongo Koshirae (金剛拵)

creating a Notare-style hamon（のたれ刃文)

tightly wrapped over hishigami for clean

Materials: CPM-3V powder steel

Red Rayskin Wrapped Saya 赤鮫皮 Option:Genuine Rayskin smelted from satetsu (砂鉄) andHandcrafted Red Rayskin Wrapped Saya with Natural Horn FittingsKoshirae Grade Finish This handcrafted saya is a Red RayskinWrapped Saya (), featuring a rich red finish that adds distinctive texture and visual depth, providing a refined yet powerful alternative to conventional lacquer only saya. The red tone conveys vibrancy, strength, and elegance, while preserving the understated aesthetics of traditional craftsmanship. The koiguchi (mouth), kurigata