Fatwood Firedrop Firestarter 8CT. These firestarters are safe, non-toxic and have a long shelf life. They are created using the leftover highly resinous sawdust waste from our fatwood firestarter sticks combined with a paraffin wax binder.They leave behind no residue and burn hot for up to 20 minutes. They can be safely used in any indoor or outdoor fire such as fireplaces, chimeneas, wood & pellet stoves, firepits & campfires.