Marvy Uchida-LePen .3mm Point Pens: Open Stock. Unrivaled for its unique, microfine synthetic point and sleek, lightweight barrel design. This pen is 5.625 inches long and the ink is vivid, acid-free, non-toxic and smudgeproof. Comes in a variety of colors. Each sold separately. WARNING: Choking Hazard. Not suitable for children under 36 months. Conforms to ASTM D4236. Imported.