Keep your favorite lighter style while adding the modern convenience and reliability of a butane fuel-powered flame. The Thunderbird Regular Flame Gas Lighter Insert features: Fits Most Popular Liquid Fuel Lighter Cases including Zippo (except for slimline zippo lighters) Ultra-reliable flint wheel ignition system, proven to work over the decades Butane Refillable, No Odor, No Mess, and it won't evaporate Also available: Torch Lighter Insert: Steady single jet flame behind a windscreen is perfect for quickly and evenly lighting your cigar without the usual gas odor tainting Pipe Insert: Steady yet soft flame angled at a convenient 45 degree angle is perfect for quickly and evenly lighting your favorite pipe without the usual gas odor tainting