👉 Kunai is a type of knife used in Japanese martial arts and traditional Chinese martial arts. These knives are typically made from durable materials such as bamboo, wood or metal, and are often used for self-defense purposes. They are also known for their sharpness and versatility, making them useful in both combat and everyday use. Kunai can be classified into two main categories: straight-knives (also known as "saw" or "sashiki") and curved-knives