Lighters run out of fuel, and matches fail the moment they get wet. A ferrocerium rod avoids all of that. No valves, no flame to protect, no moving parts to fail. It simply works in conditions that shut everything else down.
Fatwood is a naturally resin-rich wood that comes mainly from old pine trees. It is highly flammable due to its concentration of natural resin, making it an excellent firestarter for camping, bushcraft, or survival situations. Even small pieces can ignite quickly, and it burns long enough to help start larger fires