A tsuba is a handguard used on a katana, the traditional Japanese sword. It is typically made of metal, though it can also be crafted from materials like wood or leather. The tsuba serves both functional and decorative purposes, protecting the user's hand from sliding onto the blade during combat and adding aesthetic value to the sword. Tsubas come in various shapes, sizes, and designs, often featuring intricate engravings or motifs that reflect Japanese culture and artistry. They can be simple or highly ornate, showcasing the craftsmanship of the swordsmith and the historical significance of the weapon.