Do not rush to throw undeveloped stem of a ballpoint pen, when suddenly the paste will cease to act from it. Very often it is due to the fact that the open part of the thin plastic tube closed parts of the handle, the air can not penetrate inside of the stem, and the atmospheric pressure tightly seals the burner Assembly. Pierce the top of the rod one or two through holes and it will work reliably until the last drops of toothpaste. I. SERGEEV
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