Liquid Ink Roller Ball Pen, Stick, Extra-Fine 0.5 mm, Black Ink, Black/Silver Barrel, 12/PackOffers smooth flowing liquid ink that is skip free, starts effortlessly, and dries quickly so no smears or smudging! Easy glide ink for top of the line writing performance. Features water based liquid ink technology which promotes a smooth ink glide across the surface. Clear window for convenient ink supply monitoring . Pocket clip for easy storage and quick access when you reach for your favorite pen. Ideal to use in a bullet journal, notebook,