That's a refillable butane lighter. It's made by Solo. It has a nice strong jet flame, good in windy conditions, and it has a little heft to it, because of the metal case. It's been dropped plenty of times and still works! A couple other nice features are the mirror inside the cap (small, but, it would attract attention) and a compass on top. (Again, just a small button compass, but it is liquid filled and surprisingly accurate.)

I think I bought it at West Marine actually, a few years ago. Wind is a big problem on boats, I bought it for fusing the ends of lines when doing splicing on the boat, but, it has become a regular item for me now, rather than just on the boat.