Uses: Roller ball pens are suitable for using in class, marking different word and do some important note. Best for writing, note-taking and more. Feature: This rolling ball pen has a extra-fine precisions tip (0.5mm)to deliver smooth, skip-free and precise writing; delicate, fashionable and . Quick-drying : Straight liquid gels pens with precisions tip and smooth writing , at all after a few seconds, fading, or bleed-through. Fashion Designs: The pen tube has a unique designs; And also have good and will not leak , even if you use for a long timing. Service: If you are not satisfied, please do not hesitate to us for any question, we will respond to you within 24 hour and give you a solution.