Not only is the Trangia Spirit Alcohol Burner small and light, but it is one of the most reliable alcohol burners I have used, with a track record of half a century! It uses Denatured Alcohol and is unique in that you can store alcohol inside the stove when not using it as it has a twist on cap with an o-ring seal. This also keeps you from having to empty the burner between uses. It also has a simmer ring that allows you to adjust the flame down to a simmer. Another advantage is the burner is quiet, simple (no pumping or priming) and it is odorless when burning. I find that it works well inside some type of a windscreen and normally use it inside the Vargo Titanium Hexagon Stove or under the Grill Top Stove Stand. Of course, you can use other various means to hold a pot over the burner. Weighs 4 oz. (empty) and measures 2-5/16" in diameter x 1-7/8" high.