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トンボ鉛筆 Tombow

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  2. Tombow Q&A
  3. Precautions in use
  4. Pencils・colored pencils
  5. Why does the written part get dirty after erasing

Q&A

Precautions in use

Pencils・colored pencils ：Why does the written part get dirty after erasing

The theory of pencils is that as the lead touches the surface of paper, its black powder adheres on the paper and remains as handwriting. It is possible to erase the lead powder by erasers, but please note that the lead powder might spread around and make paper dirty.

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