100% Cotton Char Cloth in a 4oz. screw on top tin container. This is a must have for any outdoor adventure. It can catch the smallest of sparks from a ferro rod, flint/chert and steel or by using the back of your carbon steel knife and a piece of flint/chert. It can then be blown into flame to ignite a tinder bundle. It is light weight and multi use as the tin can is a container and can be reused to make more char cloth.