LePen 4300-S2 Red 0.3mm Micro-Fine Plastic Point Pen by Marvy Uchida. UPC 028617430201. The LePen delivers smooth writing with micro-fine plastic point and a sleek barrel design. Ink is acid-free, smudge proof and nontoxic. They are good for business forms, notebooks, diaries, memo pads, letters, journals, yearbooks, and scrapbooks. LePen conforms to ASTM D4236.