<P> Brass - based case design with matched insert coloring </P> <Li> <P> Zippo point of sale display </P> </Li> <P> Zippo point of sale display </P> <P> Zippo lighters, which have gained popularity as "windproof" lighters, are able to stay lit in harsh weather, due to the design of the windscreen and adequate rate of fuel delivery . </P>

What does the bottom of a zippo mean