Something to fiddle with during long meetings as you try to stay awake taking notes? Or, an item to play with while brainstorming? This is it.

Hold the pen where the methanol is encased and it appears to boil. Since alcohol has a boiling temperature of 149° F, it only seems to boil.

Actually the colored alcohol is simply expanding. As its volume increases, the liquid and some liquid vapor is forced up the tiny center tube. This is the observed 'boiling' action.

Looking for a pen with a more traditional finger boiler shape? See our Finger Boiler Pens.

WARNING! Do not consume the liquid as it is harmful to humans!! If ingested, seek medical help immediately.

This pen uses glass to contain the liquid. It is not suitable for those under 16 years of age.

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