Stabilo Point 88 Pen 10pc Set - Meininger Art Supply
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TIL the difference between ballpoint and rollerball pens isn't the pen, but the ink inside. Ballpoint pens use a paste-like oil-based ink while Rollerballs use low-viscosity water-based inks and gels to achieve
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File:Stabilo Point 88 - Fineliner.jpg - Wikimedia Commons