A tsuba is a handguard found on a Japanese sword, particularly the katana. It is typically made of metal, though it can also be crafted from materials like wood or leather. The primary function of the tsuba is to protect the user's hand from sliding onto the blade during combat and to provide balance to the sword. Tsubas come in various shapes, sizes, and designs, often featuring intricate decorations that reflect the owner's status or personal taste. They can depict scenes from Japanese mythology, nature, or even family crests, making them not only functional but also a form of artistic expression in Japanese culture.