The present invention relates to a board marker refilling filler for a writing instrument for a whiteboard, the board marker refilling filler equipped with a flexible body for storing ink and a lid for the adapter is assembled to the body, the board marker in the center of the adapter combined lid It is a technical gist of the board marker refilling machine, in which a hollow is formed to insert a portion of a body and a nib, and a syringe needle is positioned at the center of the hollow.;Therefore, when the ink of the board markers are all consumed or dried, it is impossible to use the ink, and the ink can be continuously used because the ink is supplied through the pen tip of the board marker.
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