The Emerson Karambit is based on an ancient Indonesian utility knife used for self protection and self defense. This is the ultimate 21st Century folding knife from Emerson Knives. With the advantage of the Emerson 'wave shaped feature', Emerson Karambits are some of the finest personal defense weapons ever developed. There are many reasons Emerson Karambit knives are considered some of the best in the industry. Don't take our word for it, see for yourself.