Samegawa, also called "Same" or "Samehada" is the Japanese word for "shark skin". It is a popular material used in making katana handle, due to its durability and resistance to wear and tear. Its durability allowed it to survive the rigors and demands of battle, while also enhancing the sword's aesthetic appeal.
What is Samegawa made of
Although its name means "shark skin" in Japanese, the same is mostly made from rayskin, a species found in abundance in warm, tropical waters. Many katanas are also made from synthetic rayskin, which makes it possible to acquire a katana at a lower price, however katana rayskin are very popular with collectors. The ray skin can also be used to cover the scabbard of the katana (Saya).