Fatwood is harvested from the stumps of pine trees that contain a high concentration of natural resin. This organic 100 percent natural resin allows the fatwood fire starter to be started with a single match and gives a sustained flame. Fatwood is 100 percent natural with no chemical or additives. Fatwood is harvested from non-endangered non-rainforest non-living trees. User friendly safe clean and non-toxic. Indoor or outdoor use. Indefinite shelf life. Can be started with a match even when wet. SCS Green Cross certified. Great for use in barbecues campfires wood stoves fire pits pellet stoves chimneys coal stoves fireplaces.