Uchida of America 4100-C-.1 Carded Le Pen Technical Drawing Pen, 0.1 Point, Black Uchida Le Pen has a smooth writing micro-fine plastic point and a sleek barrel design They're great for business forms, notebooks, diaries, memo pads, letters, journals, yearbooks and scrapbooks The inks are smudge proof and come in a variety of different colors Ink colors match barrel colors The ink is acid free and non-toxic