How to use? 1. Take a small piece of carbon cloth and place it under the stone. 2. Take the steel strike knocks flint stone, the sparks fall into the char cloth and ignites it. 3. Sparks splashed on the carbon cloth and red spots appeared. 4. Put the carbon cloth into the jute tinder. 5. Extend the blowtube into the jute and continue to blow to ignite naked flames.