lighter flint

Product listings commonly show ferrocerium rods and volcanic-stone flints as the primary fire-starting materials.

Some kits include multiple spare flints and O-rings; example listings show five replacement flints and two replacement O-rings, while other options list three larger replacement flints.

They are marketed as general fire-starting tools and are specifically cited for tasks such as lighting torches and use in certain tool kits.

Listed weights range from about 0.1 pounds up to 0.23 pounds.

You push or scrape the striker against the ferrocerium rod; that action emits sparks that can ignite tinder. Product notes also indicate the ferrocerium material works when wet.